Methods, systems and apparatus to dynamically facilitate boundaryless, high availability system management

ABSTRACT

In a Boundaryless Control High Availability (“BCHA”) system (e.g., industrial control system) comprising multiple computing resources (or computational engines) running on multiple machines, technology for computing in real time the overall system availability based upon the capabilities/characteristics of the available computing resources, applications to execute and the distribution of the applications across those resources is disclosed. In some embodiments, the disclosed technology can dynamically manage, coordinate recommend certain actions to system operators to maintain availability of the overall system at a desired level. High Availability features may be implemented across a variety of different computing resources distributed across various aspects of a BCHA system and/or computing resources. Two example implementations of BCHA systems described involve an M:N working configuration and M:N+R working configuration.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a continuation of U.S. patent application Ser. No.16/312,328 filed on Dec. 21, 2018, which is a 371 of PCT/US17/39138filed on Jun. 23, 2017, which claims priority to and benefit of U.S.Provisional Patent Application Ser. No. 62/354,669 titled “BoundarylessHigh Availability” filed on Jun. 24, 2016. The entire contents of theaforementioned patent applications are expressly incorporated byreference herein.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1A-B are block diagrams illustrating aspects of a reliable systemand an available system.

FIG. 1C1 is a block diagram illustrating an example of a systemimplementing a 1:1 hardware failover/redundancy architecture.

FIG. 1C2 is a block diagram illustrating an example of a Boundaryless,High Availability (“BCHA”) system implementing a M:N workingconfiguration architecture in accordance with some embodiments of thedisclosed technology.

FIG. 2A illustrates aspects of components associated with BoundarylessControl High Availability (BCHA) Architectures.

FIG. 2B is a flow diagram illustrating aspects of how a BCHACommissioning module develops a BCHA system.

FIG. 3A illustrates aspects of a BCHA Architecture developed using aBCHA Commissioning module and instantiation of a BCHA data servicesmodule.

FIG. 3B illustrates aspects of provisioning Boundaryless Control HighAvailability (BCHA) computing resources.

FIG. 3C illustrates aspects of commissioning Boundaryless Control HighAvailability (BCHA) applications.

FIG. 3D illustrates aspects of provisioning Boundaryless Control HighAvailability (BCHA) Control applications—High Availability Control.

FIG. 3E illustrates aspects of provisioning Boundaryless Control HighAvailability (BCHA) work items.

FIG. 3F is a block diagram illustrating example aspects of thehierarchical, inheritance relationships for BCHA Architecture attributes

FIG. 4 illustrates aspects of how Boundaryless Control High Availability(BCHA) BCHA application Execution;

FIG. 5A illustrates aspects of how BCHA system monitor operationalstates to facilitate Resource Failure Detection Load-Balancing andHA-M:N Validation Load-Balancing;

FIG. 5B1 is a flow diagram illustrating aspects of Resource FailureDetection Load-Balancing;

FIG. 5B2 is a flow diagram illustrating aspects of Resource FailureDetection Load-Balancing Remediation Operational State Determination;

FIG. 5C is a flow diagram illustrating aspects HA-M:N ValidationLoad-Balancing;

FIG. 6A is a system diagram illustrating aspects of a BCHA system M:Nworking configuration;

FIG. 6B1 is an operational state data diagram illustrating operationalstate assessment prior to computing resource failure;

FIG. 6B2 is an operational state data diagram illustrating failuredetection—CR4 Fails/Failure Detected;

FIG. 6B3 is an operational state data diagram illustrating aspects ofBCHA system redistribution element capability/characteristicsdetermination;

FIG. 6B4 is an operational state data diagram illustrating aspects ofBCHA system redistribution pool capability/characteristicsdetermination;

FIG. 6B5 is an operational state data diagram illustrating aspects ofBCHA system redistribution target selection;

FIG. 6B6 is an operational state data diagram illustrating aspects ofBCHA system redistribution remediation

FIG. 6B7 is an operational state data diagram illustrating aspects ofBCHA system executes target selection/non-critical applicationsuspension;

FIG. 6B8 is an operational state data diagram illustrating aspects ofremediation operational state determination/validate M:N workingconfiguration;

FIG. 7A is flow diagram illustrating aspects of developing asupplemental BCHA computing resource as a M:N+R working configuration;

FIG. 7B is an operational state data diagram illustrating aspects of asupplemental BCHA computing resource as a M:N+R working configuration;

FIG. 7C is system diagram illustrating aspects of a supplemental BCHAcomputing resource as a M:N+R working configuration;

BACKGROUND

Existing systems facilitate high availability features and functionalitythrough the utilization of specialized 1:1 physical, redundant failoverconfigurations using identical of nearly identical hardware. This typeof 1:1 physical, redundant fail over configuration is both expensive anddifficult to scale effectively and efficiently. Further, the existingsystems that use this 1:1 failover configuration typically requireextended longevity of decades of runtime before replacements are done.Accordingly, 1:1 physical, redundant failover configurations involvesignificant engineering challenges to support old hardware modules withoutdated components as various components encounter an end of lifehardware failure and need physical replacement. This is furthercomplicated as existing systems typically require formalhardware/software System definitions which require engineering effort toadjust whenever a plant is expanded to increase production.

SUMMARY

At least one aspect of the disclosure is directed toward a system fordynamically load-balancing redistribution elements (such as but notlimited to application and/or work items) across a group of computingresources that facilitate an Industrial Execution Process or an aspectof an Industrial Execution Process, the system comprising, a systemconfigured to, monitor the operational state data and availabilitymetrics associated with an Execution Process control system componentsand/or computing resources, identify a load-balancing opportunity totrigger redistribution of at least one redistribution element to aproposed redistribution target, process the Execution Process controlsystem components and/or computing resources to determine a targetredistribution pool of potential redistribution candidates that maintainsystem availability constraints, and redistribute the at least oneredistribution element to at least one target redistributioncomponent/computing resource selected from the target redistributionpool.

In some embodiments of the system, the load-balancing opportunityinvolves Resource Failure Detection Load-Balancing. Further, theredistribution target may be selected from the target redistributionpool according to a Load-Balancing Redeployment Type. Additionally, theLoad-Balancing Redeployment Type may include one of, Fastest FailoverLoad Balancing, Optimal Failure Load Balancing, or Balanced Failure LoadBalancing.

In some embodiments of the system, the load-balancing opportunity mayinvolve HA-M:N Validation load-balancing. Additionally, the system mayfurther comprise redistributing one or more Applications as the at leastone redistribution element.

In some embodiments, the system may further comprise redistributing oneor more Applications and corresponding Work Items as the at least oneredistribution element. Further, at least one redistribution element maybe associated with a failed computing resource. Additionally, the HA-M:NValidation load-balancing may execute a Z Validation Degree computingresource failure simulation, wherein Z is greater than or equal to 1.

In some embodiments of the system, the system may further comprisesimulating computing resource failures iteratively for each ExecutionProcess control system component/computing resource.

In some embodiments of the system, the system may further comprisedetermining an aggregated operational state for the HA-M:N Validationload-balancing.

In some embodiments of the system, an aggregated operational state maybe used to determine a transition supplemental resource request tofacilitate transitioning operational state back to a viable M:N workingconfiguration and maintain high availability requirements.

In some embodiments, the system may further comprise executing aremediation operational state determination. Additionally, theremediation operational state determination may validate that computingresources are facilitating a viable M:N working configuration andmaintain high availability requirements.

In some embodiments of the system, the remediation operational statedetermination may validate that computing resources are facilitating aviable M:N working configuration and does not maintain high availabilityrequirements. Additionally, the remediation operational statedetermination may validate that computing resources are not facilitatinga viable M:N working configuration and may not maintain highavailability requirements.

In some embodiments, the system may further comprise generating anoperational state transition Supplement computing resource request tofacilitate transitioning back to a viable M:N working configuration thatmaintains high availability requirements.

In some embodiments, the system may further comprise executingauto-remediation to obtain and provision the Supplement computingresource, and redistributing at least one redistribution element to theSupplement computing resource.

In some embodiments of the system, a computational or control componentmay be generated based on a Concrete Process Control Model andassociated computational or control component element of the ExecutionProcess. Additionally, an abstraction model component may be generatedbased on operational characteristics and capabilities associated withthe work item.

In some embodiments, the system may further comprise activatingredistributed elements along with corresponding application or work itemoperational data stored in a data services module at or near the time ofthe computing resource failure.

According to one embodiment, a method is provided for dynamicallyload-balancing redistribution elements (such as but not limited toapplication and/or work items) across a group of computing resourcesthat facilitate an Industrial Execution Process or an aspect of anIndustrial Execution Process, the method comprising, monitoringoperational state data and availability metrics associated withExecution Process control system components/computing resources,identifying a load-balancing opportunity to trigger redistribution of atleast one redistribution element to a proposed redistribution target,processing Execution Process control system components/computingresources to determine a target redistribution pool of potentialredistribution candidates that maintain system availability constraints,redistributing the at least one redistribution element to at least onetarget redistribution component/computing resource selected from thetarget redistribution pool.

In some embodiments of the method, the load-balancing opportunityinvolves Resource Failure Detection Load-Balancing. Further, theredistribution target may be selected from the target redistributionpool according to a Load-Balancing Redeployment Type. Additionally, theLoad-Balancing Redeployment Type may include one of, Fastest FailoverLoad Balancing, Optimal Failure Load Balancing, or Balanced Failure LoadBalancing.

In some embodiments of the method, the load-balancing opportunity mayinvolve HA-M:N Validation load-balancing. Additionally, the method mayfurther comprise redistributing one or more Applications as the at leastone redistribution element.

In some embodiments, the method may further comprise redistributing oneor more Applications and corresponding Work Items as the at least oneredistribution element. Further, at least one redistribution element maybe associated with a failed computing resource. Additionally, the HA-M:NValidation load-balancing may execute a Z Validation Degree computingresource failure simulation, wherein Z is greater than or equal to 1.

In some embodiments, the method may further comprise simulatingcomputing resource failures iteratively for each Execution Processcontrol system component/computing resource.

In some embodiments, the method may further comprise determining anaggregated operational state for the HA-M:N Validation load-balancing.

In some embodiments of the method, an aggregated operational state maybe used to determine a transition supplemental resource request tofacilitate transitioning operational state back to a viable M:N workingconfiguration and maintain high availability requirements.

In some embodiments, the method may further comprise executing aremediation operational state determination. Additionally, theremediation operational state determination may validate that computingresources are facilitating a viable M:N working configuration andmaintain high availability requirements.

In some embodiments of the method, the remediation operational statedetermination may validate that computing resources are facilitating aviable M:N working configuration and does not maintain high availabilityrequirements. Additionally, the remediation operational statedetermination may validate that computing resources are not facilitatinga viable M:N working configuration and may not maintain highavailability requirements.

In some embodiments, the method may further comprise generating anoperational state transition Supplement computing resource request tofacilitate transitioning back to a viable M:N working configuration thatmaintains high availability requirements.

In some embodiments, the method may further comprise executingauto-remediation to obtain and provision the Supplement computingresource, and redistributing at least one redistribution element to theSupplement computing resource.

In some embodiments of the method, a computational or control componentmay be generated based on a Concrete Process Control Model andassociated computational or control component element of the ExecutionProcess. Additionally, an abstraction model component may be generatedbased on operational characteristics and capabilities associated withthe work item.

In some embodiments, the method may further comprise activatingredistributed elements along with corresponding application or work itemoperational data stored in a data services module at or near the time ofthe computing resource failure.

According to one aspect, a non-transitory computer readable mediumstoring sequences of computer-executable instructions for dynamicallyload-balancing redistribution elements (such as but not limited toapplication and/or work items) across a group of computing resourcesthat facilitate an Industrial Execution Process or an aspect of anIndustrial Execution Process, the sequences of computer-executableinstructions including instructions that instruct at least one processorto, monitor the operational state data and availability metricsassociated with an Execution Process control system components and/orcomputing resources, identify a load-balancing opportunity to triggerredistribution of at least one redistribution element to a proposedredistribution target, process the Execution Process control systemcomponents/computing resources to determine a target redistribution poolof potential redistribution candidates that maintain system availabilityconstraints, and redistribute the at least one redistribution element toat least one target redistribution component and/or computing resourceselected from the target redistribution pool.

DETAILED DESCRIPTION

The present disclosure describes features and functionality thatfacilitate managing a BCHA system of BCHA computing resources to achievea specified availability to a BCHA system (e.g., industrial controlsystem) to enable the BCHA system to deliver and maintain requiredAvailability and/or functionality at a specified quality and lower costwithout the need for 1:1 physical failover redundancy for each computingresource/machine. The disclosed technology utilizes a pool of multipleBCHA computing resources to facilitate dynamically achieving andmaintaining the necessary high availability requirements for aparticular BCHA system. In some embodiments, the disclosed technologymonitors and reports a key performance indicator (KPI) such as BCHAsystem and/or BCHA computing resource availability and generatesoperational system metrics/recommendations for system operators toachieve the real time reliability and availability targets establishedfor a particular BCHA system. The BCHA system described can alsosimulate how certain actions (e.g., adding or removing one or morecomputing resources) will impact, affect such availability andreliability metrics, and dynamically load-balance accordingly tofacilitate achieving reliability and availability targets for the BCHAsystem and/or particular BCHA system components.

FIGS. 1A-B are block diagrams illustrating aspects of the relationshipbetween a reliable system and an available system which are two keyissues that Boundaryless Computing High Availability (“BCHA”) systemsaddress—more specifically a BCHA system analyzes BCHA system, BCHAcomponent computing resource, BCHA component application and requiredBCHA component work item availability in order to distribute BCHA systemredistribution elements including BCHA applications and BCHA work items(“WI”) in order to dynamically manage and maximize system availability.

FIG. 1A illustrates a generic Markov diagram for failure without repairon the left side of the Figure. The right side of FIG. 1A, illustrates ageneric Markov diagram for a failure that can be repaired andaccordingly illustrates aspects of “Availability”. In the examplesillustrated in FIGS. 1A and 1B, Availability (“A”) is the probabilitythat a system/system applications are operating properly when needed foruse. In other words, availability is the probability that a system isworking, i.e., not failed or undergoing a repair action and thereforeunusable. Reliability accounts for the time that it will take acomponent, part or system to fail while it is operating. It does notreflect how long it will take to get the unit under repair back intoworking condition, can be repaired or requires replacement. For example,a light bulb is a reliable element—eventually it will fail. However,once it has failed, it cannot be repaired and is thrown away. Thelighting system for a building is an available system. When a bulbfails, one can replace it by another, but the replacement of the systemcomponent involves resource coordination and perhaps system componentdown time.

If a system can be split and managed across multiple computingresources, then the reliability of the system is increased in relationto a one computing resource system. For example, improvedreliability/availability may be determined using

$\frac{F}{F_{100}} \approx {k{\frac{n - 1}{n - k}.}}$

In an example of sixteen machine node split into and managed across fourdiscrete systems involves the following calculation:

$\frac{16 - 1}{16 - 4} = {{4\frac{15}{12}} = 5.}$

The example system has five times more availability, which means if fullcapacity is to be maintained and a single system has a mean time betweenfailures (MTBF) of ten years, then the split system has a MTBF of fiftyyears. If a system is split into k parts, then the chance of losing morethan 1/k of its capacity is many, many times less than the change when asingle system implemented on a single computing resource loses all itscapacity. Depending on the scope/scale of the system, distributedavailability can be measured in centuries.

In a BCHA system, which can comprise BCHA computing resources thatinclude software and hardware elements (e.g., applications, components,modules, machines, logical hardware elements, software frameworks,communication frameworks, and the like), that control a process orprocess segment, availability ensures that important control algorithms,applications and work items continue running without interruption.Accordingly, system availability is the calculated availability based onthe machines, computing resources, control applications, appliedredundancy schemes, and the like, as well as the ability to maintainhigh availability operational states that ensure the system is availablethrough managing and coordinating BCHA computing resources, BCHAapplications, and BCHA work items.

As illustrated in FIG. 1C1, existing implementations achieve IndustrialControl Systems (“ICS”) high availability by building systems that haveduplicative, physically redundant backup/failover hardware. These one toone (1:1) redundant hardware dedicated computing resource pair HighAvailability solutions may be cost prohibitive depending on the scopeand scale of the system. Such systems use multiple one to one (1:1)redundant hardware dedicated computing resource pair, where a controlapplication deployed on a primary machine can failover to a secondary orbackup compute resource/machine in the event of a failure of the primarycompute resource/machine. This setup of 1 to 1 redundant hardwarededicated computing resource pair provides high availability, but hasthe drawback of requiring two dedicated computing resources/machines foreach control application, results in double the cost of the machines aswell as poor scalability. Moreover, existing technologies use a MeanTime Between Failure and a Mean Time To Repair (MTBF and MTTR) set offunctions to determine reliability metrics that are traditionallyhardware component failure calculations. These calculations areperformed during design and manufacture and are mostly static and mayonly be updated, only when hardware element (and their redundantfailover hardware are introduced into the system and/or when systemcomponents change.

These and various other disadvantages of 1:1 architectures, as well asMTBF and MTTR reliability metrics are overcome by the features andfunctionality of the Boundaryless Computing High Availability (“BCHA”)system described herein. Additional benefits may be realized byimplementing a BCHA system as an M:N working configuration redundantsystem illustrated in FIG. 1C2, utilizing BCHA computing resources, BCHAapplications, and BCHA work items. For example for a BCHA system:

(a) Availability can be specified as needed by a particular applicationand based on related control needs, instead of simply to comply with a1:1 redundant control requirement;

(b) applications engineers do not have to consider the assignment ofcontrol loops to specific hardware—thereby reducing engineering time andsimplifying engineering effort;

(c) obviating a 1:1 hardware requirement opens the possibility tosupport Availability Requirements through the use of Virtualized BCHAcomputing resources provisioned on IT servers; and

(d) in some instances IO can be located remotely from a BCHA computingresource.

As used herein, Boundaryless Control (BC or bc) is a utilization ofBoundaryless computing to control an industrial process, plant oroperation. More specifically, Boundaryless control involves a flexibleset of architecture principles, technologies, method and tools enablingthe optimization of automation solutions throughout their lifecycle byleveraging evolved IT technologies and abstracting high level functionsto facilitate a system that is scalable and expandable withoutlimitations grounded in underlying operational hardware or softwarecomponents, platform or applications. Boundaryless control systemsfacilitate and achieve this flexibility through utilizing a softwaredefined application layer; a flexible and reliable communicationbackbone, smart connected assets, and a hard platform designed toleverage current technologies in a way that is also extensible andupdatable to work with hardware resources as technology continues toevolve.

Advantageously, a BCHA machine or a BCHA computing resource can be aphysical machine or a virtual machine with an operating system capableof hosting one or more BCHA applications. As used herein, a virtualmachine (VM) includes a BCHA computing resource emulating a particular(or part of a) computer system. VMs operate based on the computerarchitecture and functions of a real or hypothetical computer and theirimplementations may involve specialized hardware, software, or acombination of both. In accordance with some embodiments, a BCHAcomputing resource has BC software resource that has threecomponents/aspects that facilitate BCHA system/component operationalinfrastructure features/functionality: (1) the BCHA machineconfiguration aspect, (2) the BCHA physical computing resource/machineaspect, and (3) the system management aspect. As used herein, a BCHAcomputing resource is a resource capable of running one or more BCapplications. A BCHA application can have four aspects in someembodiments. These include (1) role aspect, (2) instance (runtime)aspect, (3) visualization aspect, and (4) system management aspect.

A BCHA application or BCHA Control application has executable code thatperforms one or more functions within a BCHA computing resource. In someembodiments, a BCHA application (runtime) instance is provisioned as aseparate executable independent of other BCHA applications. In variousembodiments, a BCHA application can facilitate process control featuresand functionality, such as control algorithms, process optimization,cyber-physical computations, and the like. In some implementations, theBCHA applications may be configured to execute BCHA work items.

For BCHA work items, the fundamental concept is that software andfirmware applications perform work, e.g., calculations or controlelements. This work can be the execution of control algorithms, thescanning of TO, multi-variate computations, cyber-physical computations,etc. . . . . BCHA applications are deployed as software/firmware to BCHAcomputing resources, which are in turn computational elements defined asBCHA computing resource/Machines which bind infrastructural elementswith a computational element. The computational engines which form aBCHA computing resource/Machine can be physical computers, virtualizedmachines or Containers.

A BCHA application can use the BCHA data services to exchangeinformation with other BCHA applications, applications, heritageservice, IA runtime, and the like. In some embodiments, groups outside adevelopment organization can create BC applications, enabling full thirdparty extensibility of a BC application or series of applicationsexecuting in a cloud/fog/edge/mist (and/or some combination thereof). ABCHA application can be a provider endpoint (EP) and/or a consumer EP.

In example BCHA system implementations involving an Industrial ControlSystem (ICS), some BCHA control applications specialized in processcontrol are used to control critical processes such as running safelywithin the thresholds set by the safety system (e.g., to avoid beingswitched off by a safety system) and producing products that meetcertain specifications at the lowest possible cost. Some BCHAapplications can also be used to optimize processes (and/or aspects ofprocesses) and/or ensure BCHA system regulatory control complianceassociated with the ICS process operation. For example, some controlapplications help run processes more economically, for example, usingless energy, reducing the use of peak power, reducing use of expensivefeed stock while maintaining quality, reducing footprint of thesolution, and the like.

The BCHA system and architecture described herein manages BCHA computingresources in a way to load-balance BCHA applications while managing andcoordinating BCHA system components to achieve system availabilitymetrics. BCHA system availability requirements may be established tomaintain BCHA application features/functionality. In someimplementations, BCHA system availability may be established withadditional thresholds that initiate remediative action based on risktolerances of a system operator, the characteristics/operationalconstraints associated with a particular process and/or application,and/or a variety of other operational metrics. In some implementations,the BCHA system includes operational characteristic/constraintoptimization features and functionality that achieve the requiredavailability, as well as functionality balancing one or more operationalconstraints, such as at a specified manufacturing quality, acceptablesafety metrics, and/or lowest possible cost.

In M:N working configuration operational implementations, one to oneredundancy requirements for each machine are obviated leading to furthersystem/operational cost efficiencies. In M:N operationalimplementations, a BCHA Control module manages and coordinates the BCHAapplication 268 across current BCHA computing resources to achieve anddynamically maintain the necessary high availability operational stateutilizing only existing BCHA system components. In M:N+R operationalimplementations, a BCHA Control modules manages and coordinates the BCHAapplications across current BCHA computing resources, but also requestsadditional Resource “R” to in additional to the existing BCHA computingresources provided to achieve the necessary high availabilityoperational state. Advantageously, in an M:N+R working configuration, a1:1 physically redundant, hardware requirement can still be avoided—theBCHA Control module may calculate/determine an appropriate amount of “R”supplemental/additional requested BCHA computing resource to provisionwith the existing BCHA computing resources to achieve and maintainestablished availability requirements, as well transition to a viableM:N working configuration once the additional BCHA computing resource isprovisioned. The BCHA Control module can determine, coordinate andmanage the BCHA computing resources to achieve machine/overall systemavailability in real time based on the BCHA system attributes—includingBCHA system component capabilities and characteristics of the BCHAcomputing resources, BCHA applications, BCHA work items anddistribution/management of the BCHA system components. As used herein,BCHA capability or characteristic is an BCHA attribute that defines anoperational parameter or constraint of a BCHA computing resource, BCHAapplication and/or BCHA work item. Examples include but are not limitedto: CPU impact, colocation requirements, memory needs, data serviceneeds, CPU type requirement and co-location with other BC applications,application process criticality and/or the like.

In some embodiments, a BCHA system achieves high availability by BCHAControl applications to deploy, coordinate and manage BCHAapplications/BCHA work items across computing resources in a M to Nworking configuration. A BCHA computing resource can host any BCHAapplication which is provisioned so long as the BCHA Attributes—BCHAsystem component capabilities/characteristics make it a suitable host. Asingle BCHA computing resource does not necessarily need to be fullyredundant in nature, however more than one BCHA computing resources maybe needed to achieve high availability.

The following sequence of Figures discuss various examples of additionalBCHA system features/functionality that compound the high availabilityefficiencies achieved through BCHA application. For example, BCHAsystems can have (1) increased reliability metrics, (2) provide reliableBCHA system components/computing resources, (3) decrease/minimize BCHAsystem down time, (4) decrease the time to detect BCHA computingresource BCHA application failure, (5) decrease the time to read/writedata from/to the BCHA data services, 6) decrease the time for BCHAapplication redeployment, (8) provide alternate BCHA computing resourceswithout a 1:1 physical, redundant failover requirement, (9) dynamicallydistribute BCHA applications over BCHA computing resources creating theoptimal physical/virtual BCHA computing resource balanced usage, (10)switch BCHA applications to alternate BCHA computing resource in case aBCHA computing resource fails in a M:N working configuration or a M:N+Rworking configuration as appropriate, (11) minimize the time for a BCHAredistribution elements (e.g., BCHA application(s) and/or BCHA workitems) to redeploy and continue on an alternate BCHC computingresource(s), as well as other BCHA benefits, solutions, features andfunctionality that are described in greater detail with regard to theFigures.

In some embodiments, BCHA system high availability requirements can beachieved via a BCHA Reliability Engine module which uses constraints(e.g., resource constraints, application constraints, process constraintalone or in coordination with BCHA system component capabilities,characteristics and/or operational data) to calculate the availabilityof the BCHA system. In some embodiments, the BCHA Reliability Enginemodule can be implemented as a component integrated with a BCHA Controlmodule and make availability improvement recommendations or take actionssuch as:

-   -   (i) use the available (e.g., regained) computing        resource/compute power to move and restart a critical        application, taking into account potential action by the safety        system; and/or    -   (ii) in resource limited states, switch off the least critical        or noncritical application.

The BCHA system facilitates optimizing toward and load-balancing basedon availability selection by providing real time feedback on the overallBCHA system availability and/or a number of other BCHA system balancingoptimization characteristics (e.g., computing resource application loadlevels). An optimal availability M:N working configuration may involveno Active redundancy for some BCHA applications (e.g., noncriticalcontrol application may be disabled or inactivated in the event offailure of a machine or resource and/or easily reinitiated on other BCHAcomputing resource(s)). In other examples, an optimal availability mayinvolve even more availability through running active, redundant BCHAcomputing resources/BCHA application(s) (e.g., N to N redundancy whereevery online BCHA computing resource could potentially be used forfailover, M:N redundancy where if one BCHA computing resource goes down,the BCHA applications/BCHA work items executed on the BCHA computingresource are redistributed to the remaining M BCHA computing resourceassociated with the M:N working configuration). The desired or specifiedavailability a BCHA system facilitates enables a process to deliverproducts at a specified quality and lower cost without the need for 1:1physically redundant, hardware for each computing resource.

Another advantage of the disclosed technology is that the system isself-healing. In a control system with M:N redundancy and/or if a BCHAControl module requests additional BCHA computing resource (e.g., M:N+Rworking configuration), as redeployment targets are selected (and/orprovisioned and available for a M:N+R working configuration), they canbe utilized to facilitate increased availability metrics, as well aslower the production cost.

In accordance with the disclosed technology, high availability can beachieved (e.g., in the event of a failure of a BCHA computing resource)by:

-   -   (i) Dynamically managing a M:N working configuration to        facilitate a redundant system architecture; and/or    -   (ii) BCHA Control applications actively monitoring system        health/dynamically managing BCHA system components as the BCHA        computing resources, BCHA application(s), and/or BCHA work items        to facilitate an Industrial Execution Process or an Industrial        System Control component associated with an Industrial Execution        Process.

In some implementations, a BCHA Control module can temporarily orindefinitely suspend BCHA applications with lower priority/criticalityand using the BCHA computing resources made available to run higherpriority/critical BCHA applications. As used herein, BCHA applicationpriority/criticality is an indication of how important a particular BCHAapplication is for an Industrial Execution Process. In someimplementations, High BCHA application priority/criticality indicatesthat failure of the BCHA application can result in the safety systembringing a process to a safe state faster than for lower BCHAapplication priorities. This is useful measure to determine what type ofBCHA computing resources can be requested and provided quickly andefficiently to facilitate a BCHA system repair time that happens beforethe safety system shutdown the Industrial Execution process.

FIG. 1C2 introduces aspects of a BCHA system architecture, as well asaspects of core BCHA system features and functionality—both of which arediscussed in much greater detail throughout the subsequent Figures andcorresponding text in the specification.

In some embodiments, a high availability controller works incoordination with a reliability engine to provide real-time metrics forthe overall BCHA system to provide an indication of the control system'sreliability and availability metrics. For example, some of the metricscan indicate that a few standby machines could potentially provide evenhigher availability than a dedicated one to one redundancy approachcould provide.

FIG. 1C1 is a block diagram illustrating an example of a systemimplementing a 1:1 physical hardware failover/redundancy architecture.More specifically, each of the computing resources 105A1-105E1 have adedicated 1:1 physically, redundant computing resource operativelyconnected in parallel as 105A2-105E2. In this type of example, thecomputing resources each have dedicated, redundant computing resourcesthat may sit in an inactive state, unused until a failure is detected.Alternately, in some time sensitive implementations, the computingresources 105E1 and 105E2 may be running the same applicationsconcurrently with only one actively participating in the system.Accordingly, if computing resource 105E1 fails, computing resource 105E2steps into an active role, while minimizing any data, time switchoverlosses. However, as discussed above, this type of system has significantdrawbacks.

FIG. 1C2 is a block diagram illustrating an example of a BCHA system 100implementing an M:N working configuration architecture in accordancewith some embodiments of the disclosed technology. BCHA applications(“BCHA App X”) can be distributed across multiple computing resources105A3-105E3. One or more BCHA applications (bcApps) can be provisionedto a BCHA computing resource. For example, the BCHA computing resource105B can execute BCHA App A and BCHA App D. The BCHA system 100 alsoincludes a BCHA Control module 120 with a BCHA reliability engine module120. Additional improvements in efficiency and system efficacy are alsoachieved by implementing a BCHA data services module 130. Depending onthe particular implementation, data storage services may be distributedor centralized. For the purposes of this discussion, the BCHA dataservices are illustrated as a central data store that each of thecomputing resources connect with and provide BCHA computing resource,BCHA application, as well as BCHA work item configuration data, statusdata, output data and other related BCHA system operational dataparameters. As used herein, provisioning is the capability to installand activate a computing resource on a hardware starting point instance,as well as, an initiate a BCHA application and/or BCHA work item on aparticular BCHA computing resource.

In some embodiments, the BCHA Control module 115 and BCHA ReliabilityEngine module 120 monitor system health and operational data such asBCHA computing resource availability and loading for each of the BCHAapplication instances executing on each of the respective computingresources 105A-105E across a M . . . N working configuration. In FIG.1C2, the BCHA Control module 115 can detect if BCHA computing resource105E3 fails and work to redistribute BCHA App E to an appropriatealternate BCHA computing resource within the M:N working configuration.As illustrated BCHA App 3 is redeployed to BCHA computing resource105A3.

Furthermore in some implementations, to the BCHA Control module 115 canalso temporarily suspend BCHA App A or Redeploy BCHA App A to adifferent BCHA computing resource as appropriate to facilitate aredeployment. As illustrated, the BCHA Control module shifts BCHA App Ato BCHA computing resource 105B3 to facilitate redeployment of BCHA AppE to BCHA computing resource 105A3. Aspects of BCHA system loadbalancing are discussed in greater detail with regards to the FIGS.5A-7C.

In some embodiments the BCHA system coordinates BCHA computing resourceactivity to achieve availability is at least as high as the HighAvailability requirements which defined for whichever BCHA applicationis the highest priority/most critical BCHA application. The BCHAReliability Engine module 120 utilizes BCHA application attributes, thatidentify availability capabilities/characteristics of the BCHAapplication(s)/BCHA computing resource(s) (“BCHA system attributes”) tomanage and monitor the availability of the system. In some embodiments,BCHA Reliability Engine module 120, in managing the BCHA systemavailability requirements, can utilize BCHA computing resourcesattributes and ultimately identify which computing resources aresuitable as a redistribution target for the redeployment of a given BCHAapplication.

Managing the BCHA system availability can include, for example, usingBCHA application attributes to determine the BCHA system's requirementsfor BCHA computing resources, which can then be used to facilitatecoordinating and managing provisioning rules, active BCHA applicationmanagement, BCHA computing resource load-balancing and/or the like. Asused herein, a BCHA application attribute is an accessible parameter ofa BCHA computing resource, a BCHA application, and/or a BCHC work item.Depending on the BCHA application, application or work item, anattribute generally has an identification, data type, security,classifications (runtime and/or input and/or config), and the like. SomeBCHA attributes give the user the possibility to configure a BCHAapplication. Runtime attributes may have a quality indication and/or atime indication. Values of some attributes can be dynamically changedbased on another BCHA attribute in the system (i.e., input parameters).BCHA Attributes are data parameters stored in the BCHA data servicesmodule 130 and will be discussed in greater detail below ascharacteristics, capabilities, and/or operational constraints.

In some embodiments, the BCHA Reliability Engine module 120 can beimplemented on a controller (not shown). In other embodiments, the BCHAReliability Engine module 120 can be deployed in coordination with or asintegrated with on a BCHA Control module 115 or independently executedon one more of the BCHA computing resources (e.g., resources 105A-E).The BCHA Control applications BCHA Commissioner module 110, BCHA Controlmodule 115, and BCHA Reliability Engine module 120 as described abovecan facilitate control application provisioning, load-balancing, cachingof data (e.g., control application data), monitoring status, operation,performance, and the like. BCHA computing resources/BCHA Applicationsinterface with the control applications via an application programminginterface (API) in some embodiments.

The BCHA data services module 130 may utilize multiple technologies. Forexample, a faster technology providing high-speed and low latency may beutilized for run-time and external IO data access, and a slowertechnology for configuration data access. In some embodiments, some ofthe data may be cached more local to the BCHA application instance suchas on the BC resources for improved performance. The BCHA data servicesmodule 110 ensures that data can be written in a timely manner and thatdata is available in a timely manner to BCHA computing resources, BCHAapplications and BCHA work items. In some embodiments, the data serviceread/write access ability is at least as fast as needed by the fastedBCHA application.

In accordance with the disclosed technology, the BCHA Control module 115can actively manage and re-deploy a BCHA application/BCHA work item fromone BCHA computing resource to another. For example, in the system 100,the BCHA

Control module can move BCHA App A from BCHA computing resource 105A3 toresource 105B3 (e.g., due to resource 105A being down or to createavailability for a redeployment). The decision to move to resource 105Bmay be based on the operational characteristics and/or system metrics(e.g., cached and/or accessed from the BCHA data services module 130).For example, BCHA App A may be a critical application and resource 105Bmay have computing resource available to execute BCHA App A. BCHA App A,moving from one resource to another resource, can resume within the timeconstant of the process section or segment the control application (BCHAApp A in this example) controls.

In some embodiments of the disclosed technology, some BCHA applicationscan be critical while others can be noncritical. The noncritical BCHAapplications can be given lower priority for failover in some instances.For example, in the BCHA system 100, BCHA App E may be a noncriticalcontrol application, and in order to maintain availability of theoverall system, bcApp E may be suspended not be restarted on anotherresource if processing availability does not exist. When BCHA processingavailability does exist for example, on BCHA computing resource 105A,the noncritical BCHA application App E can be provisioned thereon andrestarted/or pick up in the middle of processing by accessing the lastviable date state from BCHA data services module 130.

Accordingly, the BCHA systems, features and functionalities describedfacilitate significant gains in a BCHA system's abilities to:

-   -   achieve, monitor and maintain high-availability system        requirements for a number of networked, connected devices;    -   significantly reduce hardware and resource requirements and        expenses through implementation of M . . . N failover        architectures instead of 1:1 physically redundant, fail-over        architecture; and    -   achieve improved system architectures management through M:N+R        working configuration that ultimately facilitate more robust M:N        working configurations through supplemental resource        commissioning/deployment.

Accordingly, in order to illustrate various aspects of each of thesecore BCHA system benefits/optimizations, as well as related systembenefits and efficiencies realized by implementing a BCHA systemarchitecture the following description will discuss aspects of:

-   -   (1) how a BCHA system is developed/commissioned;    -   (2) BCHA system features and functionality, and related logic        flows associated with various operational features and        functionality for HA-M:N Validation Load-Balancing, as well as a        failure detection/remediation;    -   (3) a working example of a BCHA load-balancing failure        detection/re-mediation; and    -   (4) BCHA system HA-M:N Validation Load-Balancing supplemental        computing resource commissioning/distribution.

FIG. 2A illustrates aspects of components associated with BoundarylessControl High Availability (BCHA) architectures and components of a BCHAsystem 200. The BCHA System Commissioner module 210 is a BCHA systemmodule responsible for receiving and executing a BCHA system developmentcommissioning plan during initial BCHA system development. After thesystem is commissioned, operational management transitions to the BCHAControl module 215 to coordinate work item management and BCHA systemload balancing (Resource Failure Detection load-balancing, as well asActive load balancing/M:N working configuration validation). In someimplementations, the BCHA System Commissioner module 210/BCHA Controlmodule 215 may also have roles in provisioning computing resources,applications and/or work items after initial BCHA system development asSupplemental/Additional BCHA computing resources 240/250 are providedfor the BCHA system 200. Depending on the particular implementationdetails, the BCHA commissioner module 210 may be instantiated on its ownBCHA computing resource, incorporated with the BCHA Control module 215or in some implementations the commissioner features/functionalityeither integrated with BCHA Control module 215 and/or executed remotelyas a cloud service.

After the BCHA System Commissioner module 210 validates initialconfiguration and commissioning of the BCHA system 200, the BCHA Controlmodule 215 drives operational run-time management working to achieve theavailability requirement/metrics defined in the BCHA system developmentcommissioning plan. One or more BCHA computing resources 240/250 may beprovisioned by the BCHA System Commissioner module 210 to effectivelyhost the BCHA applications 268 executed by the BCHA system 200, as wellas the BCHA work items 270 executed on respective BCHA applications.BCHA System Commissioner module 210 is configured to achieve most of thecommissioning functionality associated with the BCHA system 200, butworks with two BCHA control applications 205 that have specializedutility: (1) the BCHA Application Configurator 211—used for developingBCHA work items; and (2) a BCHA Control Application Configurator 212used for developing BCHA control applications 205 such as the BCHAControl module 215, the BCHA Reliability Engine module 220 and the BCHAWI Pool Manager module 221. Ultimately, the BCHA computing resources240/250, BCHA applications 268 and respective BCHA work items 270 arecommissioned and managed to facilitate an Industrial Execution process.Given the flexibility of the BCHA system 200, the Industrial Executionprocess may be an entire workstream, industrial control process or anelement/component workstream within an industrial control process—e.g.,coordinating a manufacturing line or elements of the manufacturing linesuch as a conveyer assembly.

The configuration, operational and BCHA system management data, for theBCHA system 200 is stored in BCHA data services module 230. The BCHAControl module 215 manages (or works with BCHA WI Pool Manager module221 to manage) work item distribution. In the event of BCHA computingresource 240/250 failure—BCHA application/BCHA work item failure,storing the BCHA computing resource, BCHA application, BCHA work itemconfiguration data, as well as the operational/output data centrally (ordistributed but independently from local storage at the respectivecomputing resource) leads to significant system flexibility andfacilitates one of the key benefits of M:N architecture—if one computingresource fails, the high availability controller canredistribute/re-deploy application(s) and work item(s) from onecomputing resource to another quickly and efficiently.

As illustrated in FIG. 2A, BCHA data services module 230 is configuredas a centralized data store/database that stores and makes accessiblevarious commissioning system/computing resource/applicationcharacteristics and capabilities. The data stored in the BCHA dataservices module 230 is used by the BCHA Control module 215 working incoordination with the BCHA Reliability Engine module 220 toactively/passively monitor system health, system operationalcharacteristics and works to achieve BCHA system availabilitymetrics/requirements for the system 200, and the BCHA work item (“WI”)Pool Manager 221.

Depending on the nature of available resources, the BCHA computingresources 240/250 associated with a particular BCHA system may be aheterogenous mixture of a variety of physical BCHA computing resources240 or Virtual BCHA computing resources 250 provisioned based on adiverse spectrum of heterogenous computing resource hardware startingpoints. The physical and virtual computing resources may be configuredand built upon any number of bare metal platforms. For example, in FIG.2A, physical BCHA computing resource 240 is illustrated as a beingprovisioned based on a BC HW resource 243, which may be something asstraightforward as a Raspberry Pi, alternately physical computingresource 241 may be developed from an on-premise PC-Server hardwareresource 246. Similarly, Virtual BCHA computing resources 250 may bedeveloped using virtual machines hosted on-premise PC-Server HWResources 253, on-premise cloud computing resources 256, and/or publiccould computing resource 259 computing resource starting points. For theBCHA system 200, regardless of the underlying computing resourcestarting point, the BCHA System Commissioner module 210 instantiates theBC HW Resource Starting Point 262 with BC Resource Operating System 264and BCHA Resources 266 that include logistical software components suchas BCHA Technology Stack Services, BC Machine Software and/or ContainerManagement Services, as well as the BCHA applications 268. As will bedescribed in greater detail in FIG. 3D, the BCHA application(s) 268 arethe BCHA system elements that execute the BCHA work items 270 and inturn ultimately achieve the Industrial Execution process.

It is to be understood that the various BCHA system architecturedescribed facilitates significant flexibility, and as such, a widevariety of BCHA system 200 implementations are possible. Various aspectsof the BCHA system 200 features, functionality, data processing andstorage may be re-configured to meet the operational constraints, needsand requirements of a variety of differing endimplementations/Industrial Execution processes. For example, althoughFIG. 2A illustrates discrete system modules for BCHA data servicesmodule 230, BCHA System Commissioner module 210, BCHA Control module215, as well as BCHA Reliability Engine module 220, thefeatures/functionality associated with one or more of those modules maybe implemented as discrete modules or for some BCHA system architectureimplementations, incorporated with and/or distributed across one or moreother BCHA system control applications 205 and/or other BCHA systemmodules/computing resources. Furthermore, depending on the nature of theparticular Industrial Execution process application associated with theBCHA system 200, aspects of the underlying features or functionality maybe configured to execute as event driven tasks, continuously loopedactivities, and/or some combination of the events/loops.

FIG. 2B is a flow diagram illustrating aspects of how a BCHA systemCommissioner module 210 develops a BCHA system 200. More specifically,FIG. 2B is a flow diagram illustrating aspects of how the BCHA SystemCommissioner module 210 develops and commissions various BCHA computingresources 240/250 associated with a BCHA system 200 and works incoordination with other BCHA Control applications 205 in accordance withthe BCHA system development commissioning plan, in step 273. In Step275, the BCHA System Commissioner module 210 instantiates the BCHA dataservices module 230. After the BCHA data services module 230 isestablished, the BCHA System Commissioner module 210 compares availablecomputing resource hardware starting points with the BCHA systemdevelopment commissioning plan to check if sufficient computingresources can develop BCHA computing resources 240/250 to facilitate theIndustrial Execution process, in step 276. Steps 281 and 284, involveidentifying any additional bare hardware starting point resourcerequirements, accessing and any provided additional resources.

The BCHA System Commissioner module 210 iteratively provisions the BCHAcomputing resources 240/250 as well as instantiates appropriate BCHAapplication(s) 268 on the respective BCHA computing resources 240/250,in step 287. Each of the BCHA computing resources 240/250 and respectiveBCHA application(s) 268 are in turn, registered with the BCHA dataservices module 230, in step 290 (although illustrated as discretesteps, instantiation and registration may occur as the commissioningmodule works with each respective computing resource).

In step 293, the BCHA System Commissioner module 210 or a BCHA ControlApplication Configurator 211 works with one of the BCHA computingresources 240/250 to instantiate one or more a BCHA controlapplication(s) 205 and corresponding computing resource(s). Morespecifically, a BCHA control application may be configured as the BCHAControl module 215 which also includes the BCHA Reliability Enginemodule 220 and/or BCHA WI Pool Manager module 221, both which are alsoregistered with BCHA data services module 230. An aspect ofcommissioning/instantiating the BCHA Control module 215 and theReliability Engine module 220 involves processing aspects of the BCHAsystem development commissioning plan, to develop availability andoperational requirement metrics for the BCHA system. The BCHA Controlmodule 215, the BCHA Reliability Engine module 220 and the BCHA WImanagement pool manager 221 manage and coordinate BCHA work items 270across the registered BCHA computing resources 240/250 to maintain: (1)BCHA system operation, (1A) a viable M:N working configuration and (1B)BCHA High Availability Operational Requirements.

In some implementations, the BCHA Control module 215 will initiateload-balancing activities based on operational state or based on acomputing resource failure detection(s). In step 294, as part of BCHAControl module 215 commissioning, the BCHA system control ApplicationConfigurator module 212 also instantiates the BCHA WI management poolmanager 221. Once the WI pool is created, the BCHA System Commissionermodule 210 instantiates and registers the initial set of work items withthe BCHA data services module 230, as well as populates the pool withregistered work items for distribution by the BCHA WI management poolmanager 221, in step 295. After instantiating the various BCHA systemelements, the BCHA system control applications 205 establish highavailability/redundancy for BCHA system critical elements, such as theBCHA data services module 230, the BCHA Control module 215, and the BCHAReliability engine module 220, in step 297. The BCHA System Commissionermodule 210 validates the commissioned BCHA system architecture toconfirm consistency with the BCHA system development commissioning plan.If the validation is successful, the BCHA system 200 then transitionsinto an operational state, in step 298. If there are any issues with thevalidation, the BCHA System Commissioner module 210 works with the BCHAsystem control applications 205 to rectify any issues/inconsistenciesidentified during the validation, and then transitions into theoperational state.

After baseline BCHA system 200 development and instantiation, the BCHAControl module 215 monitors system health/load balancing metricsassociated with the BCHA applications 268 processing BCHA work items 270across the respective BCHA computing resources 240/250 as the BCHAsystem 200 works to achieve the Industrial Execution process. TheIndustrial Execution process is the ultimate execution goal of theprocess control system (or the respective workstream [or sub-workstream]that is the reason the BCHA system 200 was created to do—drive amanufacturing line or a component of a manufacturing line. An IndustrialExecution process is identified and defined for a particular BCHA systemand includes operational/configuration details as to some aspects ofrequirements for BCHA computing resource 240/250, BCHA applications 268,BCHA system availability/reliability metrics, and a variety of otheroperational characteristic/capability definitions that are used todevelop BCHA foundational baseline system requirements. The baselinerequirements are downloaded to BCHA System Commissioner module 210 andused effectively as a roadmap to develop the various components/elementsassociated with a BCHA system commissioning plan.

Aspects of the BCHA System Commissioner module 210 provisioningrespective system elements and components, such as BCHA computingresources 240/250, BCHA applications 268, BCHA work items 270, BCHA dataservices module are described in greater detail with regards to FIGS.3A-3F.

FIG. 3A illustrates aspects of a BCHA System Commissioner module andinstantiation of a BCHA data services module 230. The BCHA systemcommissioning plan is downloaded to the BCHA System Commissioner module210 and in turn used to instantiate BCHA data services module 230. Theprocess starts with the BCHA System Commissioner module 210instantiating some of the baseline BCHA system architecture data 300 inaccordance with the commissioning plan. For example, the BCHA SystemCommissioner module 210 instantiates the preliminary data records forthe BCHA computing resources 240/250 associated with the commissioningplan. The instantiated computing resource data and other BCHA systemcomponent data 305 are populated as each of the othercomponents/elements are instantiated as the BCHA System Commissionermodule 210 progresses developing the BCHA system 200 executing theconfiguration/commissioning process. The BCHA data services module 230includes data parameters associated with the BCHA system architecture300, the Industrial Execution process 301, BCHA componentcapability/characteristic data 302, operational data output data 303.The BCHA data services module 230 also includes data records associatedwith the BCHA control applications 205. BCHA system Commissioner moduledata 306, BCHA Control module data 307, BCHA Reliability Engine moduledata 308 as well as BCHA WI Pool Manager Data 309. BCHA system ComponentData records 310 and related parameter data are also maintained for dataassociated with respective BCHA computing resources 311, 312, BCHAapplications 313, 314, and 315 executing on the respective computingresources, as well as BCHA work items 316, 317, and 318 executed by theBCHA application 314. BCHA Control module

The BCHA data services module 230 can be a highly available (centralizedor distributed) data store/service (e.g., implementing redundancy) thatis accessible to all the BCHA computing resources 240/250, BCHAapplications 268/work items 270 executing on the computing resources240/250, the BCHA commissioner module 210, the BCHA Control module 215and the BCHA Reliability Engine Module 220, and the BCHA WI Pool Manager221. In some embodiments, the data service availability is at least ashigh as the availability for the most critical BC application. In someembodiments, BCHA data services module 230 can also store data such as,but not limited to:

-   -   boundaryless name space management all BCHA computing resource        240/250, BCHA application 268 and BCHA work item 270 run-time        data aspect    -   BCHA application capability/characteristic data/parameters,        application configuration data/parameters, application        constraint data/parameters    -   BCHA application operational status data/parameters; and    -   all external IO data, IO VTQ, collected by external IO        interfaces and stored in the data services by one or more BC IO        applications.

FIG. 3B illustrates aspects of developing Boundaryless Control HighAvailability (BCHA) Architecture computing resources. In FIG. 3B, step325, BCHA System Commissioner module 210 uses a BCHA systemcommissioning plan to develop the BCHA computing resources 240/250necessary to execute BCHA applications 268 and BCHA work items 270 thatin turn, execute the Industrial Execution process. The BCHA SystemCommissioner module 210 accesses the commissioning plan to determinenumber/type of BCHA computing resources 240/250 available meet therequirements established in the commissioning plan, in step 327. Morespecifically, BCHA System Commissioner module 210 confirms existingphysical/virtual bare metal/starting point resources exist and arecapable of configuration to meet Industrial Execution process BCHAcomputing resource processing requirements. In step 329, the BCHA SystemCommissioner module 210 requests additional resource starting points tosatisfy any discrepancies between the Execution plan computing resourcerequirements and the available resource starting points. Once theadditional resource is provided, in step 331, BCHA system thecommissioning module re-validates the plan and available startingresources. After validation, the BCHA System Commissioner module 210systematically provisions each BCHA computing resource starting pointwith the logistical software/firmware modules to facilitate BCHAservices.

In step 333, the computing resource starting point is configured with anOperating System. Once the operating system is instantiated, BCHA SystemCommissioner module 210 con Figures (a) computing resource technologystack services, (b) BCHA Machine software, and/or (c) containermanagement services, in step 335. With the computing resource logisticalsoftware components in place, BCHA System Commissioner module 210iteratively instantiates computing resource BCHA application(s) 268 insteps 337,338 for BCHA application(s) 268 associated with the particularBCHA computing resource(s) 240/250 that are instantiated. The BCHAapplications 268 are configured and commissioned in accordance with therequirements identified in the commissioning plan, for the particularBCHA computing resource(s) 240/250 and to facilitate the IndustrialExecution process. BCHA application instantiation is discussed ingreater detail in FIG. 3C. In step 340, the respective BCHA computingresource(s) 240/250 and corresponding BCHA applications 268 areregistered with the BCHA data services module 230. Although this isillustrated as a discrete step, depending on the implementation, eachBCHA computing resource(s) 240/250 and corresponding BCHA application(s)268 may register with the BCHA data services module 230 after the BCHASystem Commissioner module 210 completes the instantiation process. Step342, illustrates iteration loop(s) as the BCHA System Commissionermodule 210 progresses through instantiation and registration for each ofthe BCHA computing resources 240/250 associated with the BCHA system200. After the BCHA computing resources 240/250 and corresponding BCHAapplication(s) 268 have been commissioned and registered, in step 344,BCHA System Commissioner module 210 starts instantiating BCHA controlapplications and work items 270 (discussed in greater detail in FIGS. 3Dand 3E respectively).

FIG. 3C illustrates aspects of commissioning Boundaryless Control HighAvailability (BCHA) applications. As discussed with regards to the FIG.3B, one aspect of commissioning the BCHA computing resources 240/250involves instantiating the various BCHA application(s) 268 that therespective computing resources will execute to facilitate the IndustrialExecution Process. FIG. 3C illustrates aspects of how each BCHAapplication 268 is instantiated. For each BCHA application 268associated with a BCHA computing resource 240/250, the BCHA systemcontrol applications 205 instantiate as a series of services. Morespecifically, as illustrated State Services 345, WI Management Services346, Health Service 347 and Data Services 348 are established for eachBCHA application 268.

FIG. 3D illustrates aspects of instantiating BCHA system Controlapplication(s) 205. The BCHA Control Application Configurator 212 isresponsible for initial provisioning of BCHA system Control applications205. BCHA system Control applications 205 have a similar start as BCHAapplications 268 discussed above with regard to FIG. 3C and start asBCHA applications 268, instantiated on BCHA computing resources 240/250.The BCHA System Commissioner module 210 progresses a step further toprovide BCHA Control application with additional enhancedfeatures/functional modules that facilitate key hierarchical controlroles 355 within the BCHA system 200. For example, the BCHA Controlmodule 215 is developed as a BCHA computing resource 240/250 with BCHAapplication 268 that is enhanced with additional load balancingoperational capabilities, as are the BCHA Reliability Engine module 220and the BCHA WI Pool Manager 221.

The BCHA Reliability Engine module 220 is primarily responsible forworking with BCHA Control module 215 to facilitate Resource FailureDetection load-balancing deployment and HA-M:N Validationload-balancing. The BCHA Reliability Engine module 220 may also monitoractive BCHA system 200 availability/operational metrics to determinewhen WI load-balancing is appropriate. When the BCHA Reliability Enginemodule 220 conducts an operational state assessment and determines thatload balancing is appropriate, the BCHA Control module 215 coordinateswith BCHA WI Pool manager module 221 and facilitates re-deployment.

The BCHA Reliability Engine module 220/BCHA WI Pool Manager 221facilitate various load balancing types through monitoring operationalstate/loading data and the re-deployment of BCHA work items 270. InResource Failure Detection Load-Balancing, the BCHA Reliability Enginemodule 220 can detect BCHA computing resource 240/250 failure andinitiate a BCHA Control module 215/BCHA WI Pool Manager 221redistribution element redeployment to redeploy and load-balance of BCHAapplications 268/BCHA work items 270 associated with the failed BCHAcomputing resource(s) 240/250.

As another example, BCHA Control module 221 can facilitate HA-M:NValidation Load-Balancing and simulate BCHA Computing resource failuresto determine and validate a M:N working configuration ability tomaintain High Availability requirements despite simulate BCHA computingresource failure.

These two examples of BCHA system load-balancing are illustrative ofaspects of features and functionalities associated with the BCHA systemand it is to be understood that other types of BCHA systemload-balancing are also possible. These two types of BCHA systemload-balancing will be the focus of FIGS. 5A-7C

FIG. 3E illustrates aspects of developing Boundaryless Control HighAvailability (BCHA) Architecture work items. In FIG. 3E, BCHA work items270 are created during the BCHA system 200 instantiation process as partof executing the BCHA system development commissioning plan. In step357, BCHA System Commissioner module 210 works with the BCHA ApplicationConfigurator 211 atomizes an element of the Industrial Execution Processto create a BCHA work item 270 as a computational or control elementunit that executable by a BCHA application 268. More specifically, instep 358 the BCHA System Commissioner module 210/BCHA ApplicationConfigurator 211 processes an Industrial Execution process element witha concrete generation model—for example IAS 88 Control Model 358A or61580 Control Model 358B. In step 360, as part of the WI generation,BCHA System Commissioner module 210/BCHA Application Configurator 211creates two parts to the work item: (1) a compartmentalized, selfcontained computational/control unit based on the concrete model; and(2) a work item abstraction model that includes metadata associated withthe BC work item 270 (e.g., BCHA application execution type, WIprocessing execution/load requirements, timing constraints, input/outputdata element requirements, etc. . . . ).

In step 362, the WI Pool Manager 221 processes the abstraction model tomatch and distribute work items 270 BCHA Control module 215 forexecution by the BCHA process applications 268/BCHA computing resources240/250. For example, in WI Assignment step 364, the BCHA WI PoolManager 221 processes WI abstraction model 364A and determines the WImetadata indicates the WI has two operational characteristics (1) the WIneeds an IEC 61131 BC application for execution; and (2) the WI willconsume five execution/loading units on any BC computing resource240/250 the work item 270 is ultimately assigned to. The WI Pool Manager221 accesses BCHA data services module 230 and searches for any BCHAcomputing resources 240/250 that may be a match and identifies 364B—acomputing resource 240/250 with WI API metrics indicating the BCapplication is an IEC 61131 BC application Runtime Instance; and has 25execution/loading units available. Depending on the nature of theapplication and implementation, the BCHA Control module 215/BCHA WI PoolManager module may be configured to assign a BC work item 270 as soon asa match is found. Alternately, it may iterate through BCHA computingresources 240/250 to not only identify a potential match, but alsoidentify an optimal match based on a variety of optimizationmethodologies/criteria.

In alternate embodiments, BCHA work items 270 (or groups of work items)may be pre-configured for a variety of process controls, preferredfailover default targets, and/or included as pre-configured componentswithin the BCHA system development commissioning plan. BC applications268 for control and other functions in PLCs and DCSs focus on highgranularity control applications. The high granularity facilitates theability to break an Industrial Execution process down into theseatomized elements and in turn create, a level of independence betweenthe work item 270 and the underlying computing resource 240/250. So longas an BCHA application 268 is running that is capable of executing theBCHA work item 270, the BCHA computing resource 240/250 executing theBCHA application 268 is not directly critical. In a PLC environmenttypically “Programs” are created using any of the IEC 61131 languages.The created program is then sent to a PLC where it is executed. In DCSsystems there is a mix of programmed control applications andconfiguration based control applications. However, in both scenarios theconfiguration is targeted to specific controllers within the system.

BCHA work items 270 define work to be performed by any BCHA applications268 in the BCHA system 200 such as control, IO Scanning, Alarming,Multi-variate optimizations, Asset Management, etc. The BCHA work item270 types will grow and expand as new BC applications are developed. TheBCHA system 200 must provide an abstraction around BC work itemmanagement to support both the diversity as well as the expandability.As illustrated in FIG. 3E, an abstraction model/definition of a BCHAwork item 270 is created in step 358, by the BCHA Commissioning moduleutilizing a BCHA Application Configurator 211 and various BCHAapplications 268 associated with the BCHA system 200.

This information can be used to facilitate a best-fit match with a BCHAapplication 268 during a WI load-balancing event. The BCHA work item 270also contains a generic set of data parameters/fields common to all BCHAwork items 270 (e.g., number of computational loading units forexecution, etc. . . . ). The generic information is used for theassignment of BCHA work items 270 to BCHA applications 268. The genericinformation is the only work item data visible to the BCHA system 200outside of the BCHA Application Configurator 211. The BCHA ApplicationConfigurator 211 segments the definitions created into BCHA work items270 independently of any user interaction. BCHA work items 270 arecreated based on rules which are specific to the BCHA ApplicationConfigurator 211.

As an example, a loop editor, may segment a loop definition intomultiple BCHA work items 270; primary control, secondary control, IO forprimary input, IO for secondary input, IO for output. The decision onthe number of BCHA work items 270 generated is done by the BCApplication Configurator 211 based on its internal processing rules, thescope/scale of the Industrial Execution process, and the BCHA systemArchitecture Commissioning Plan and other operationalcapabilities/characteristics. The abstraction through BCHA work items270 allows the BCHA system 200 to manage the assignment of BCHA workitems 270 to BCHA applications 268 with no knowledge of the informationcontained within the work assignment or the nature of the underlyingcomputational element or control element. This abstraction provides ahigh level of extensibility.

Another benefit of the separation between concrete and abstractedbehavior to the BCHA work items 270 is the ability for varied concretemodels to be applied to the BCHA system 200. The concrete models andtheir specific definitions are not known to the BCHA system 200, such asthe BCHA Control module 215 and/or other BCHA system infrastructurewhich manages to an abstract model. This allows flexibility andexpandability of the BCHA system 200. As an example, a BCHA ApplicationConfigurator 211 associated with the BCHA Commissioning module 210 canpresent to the user an ISA88 view for control definitions. The same BCHAApplication Configurator 211 can present to the user an IEC61850 view ofthe BCHA system 200. In both cases the BCHA Application Configurator 211may be presenting a loop editor to the user to generate the concretework item units for execution. However, in one scenario the BCHAApplication Configurator 211 can show process assets alone and or incombination with a second scenario that includes electrical stationcomponents. In this example, the two physical asset models areimplemented with no architectural changes to the BCHA system 200. TheBCHA system 200 and the BCHA Control module 215 distributes the createdBCHA work items 270 with no knowledge of the underlying concreteunits/representation. New concrete models are merely new inputs for BCHAApplication Configurators and new BCHA applications 268 in the systemfacilitated by the BCHA commissioner module 210 and as such,advantageously, the BCHA system 200 can facilitate new data models,features and/or functionality without necessarily requiring BCHA systemarchitectural change(s).

The assignment of BCHA work items 270 to BCHA application 268 isabstracted based on BCHA system 200 Attributes including characteristicsand capabilities. However, the BCHA system 200 does require informationabout which BCHA application 268 can process the BCHA work item 270 aswell as other information that supports the allocation. BCHA work items270 abstraction models contain meta-data information that characterizesthe BC work item 270 and its intended usage without going into thedetails associated with the concrete model. The BCHA applications 268also publish meta-data describing what capabilities they provide workingin the BCHA data services module 230. The meta-data is not fixed and isextensible as a BCHA system 200 evolves. The meta-data contained in theBCHA work items 270 can also be updated, supplemented, complemented orotherwise changed over time. An old BCHA work item 270 may have lessmeta-data information than a newer BCHA work item 270. The BCHA system200 and BCHA Control module 215 will use as much information that existsto determine the assignment and re-deployment during a load-balancingevent. Similarly, a new BCHA work item 270 may contain additionalmeta-data information that is not known to the BCHA system 200. Again,the BCHA system 200 will use as much meta-data as is available and knownto determine the assignments. In all cases the BCHA application 268 mayreject the assignment/redeployment requiring the BCHA system 200 toassign the BC work item 270 to a different target re-deployment BCHAapplication 268. Work item matching, management and re-deployment arediscussed in greater detail with regard to FIGS. 4A1 and 4A2.

The BCHA system components identify load-balancing opportunities, aswell as execute a WI load-balancing event through the redistribution ofBCHA components as redistribution elements. Depending on the particularimplementation, the type of load balancing achieved may be establishedby a system operator and several types of load balancing are possibleusing the systems described (e.g., operational state, active system loadbalancing failure detection, etc. . . . ). Furthermore, it may bepossible to implement an optimization model that optimizes systemload-balancing according to more than one load-balancing type. However,for the purposes of illustrating the flexibility and benefits achievedby implementing BCHA Control module 215, the following examples mayfocus initially on load balancing events to achieve maintaining arequired level of ‘availability’, and/or distributing redistributionelements, (e.g., BCHA applications 268/work items 270) to maximizesystem availability and/or broadly distribute work itemexecution/processor load across the computing resources 240/250associated with BCHA system 200. The BCHA Control module 215 may alsoachieve load balancing through temporarily suspending non-critical BCHAapplications 268/work items 270. In certain instances, non-critical BCHAapplications 268/work items 270 may be suspended indefinitely or untiladditional resource is provide to the BCHA system 200.

The BCHA Control module 215/BCHA WI Pool Manager 221 utilize work itemmeta-data to facilitate WI redistribution. A BCHA work item 270 willcontain a variable amount of information including operational data,configuration metadata (as the Abstract model discussed above withregard to FIG. 3E). At a minimum, the metadata specifies the BCHAapplication type and performance characteristics. It may also includeother capabilities or characteristics such as a WI priority; aninterrupt/suspension capability or other aspects of WI operationalexecution.

Although, in the following example the BCHA Control module 215/BCHA WIPool Manager 221 redistributes BCHA work items 270 based on matching thetype of BCHA application 268 that can execute BCHA work items 270, andsystem computing resource redistribution availability, a secondaryredistribution metric involves distributing the processing load broadlyacross the BCHA computing resources 240/250. The redistribution metricsand/or work item 270 performance characteristics are not static. Theinitial configuration established the BCHA commissioner module 210 willexecute an initial distribution and generate estimates for the BCHA workitem 270 loading characteristics. As a BCHA application 268 executes aBCHA work item 270, it can generate and track operational metrics suchas the actual loading characteristics. These operational metrics (andthe underlying data/statistics) are maintained in the BCHA data servicesmodule 230 and may entail more information than was what initiallygenerated by the BCHA Commissioner modules 210. The run-time refinementsfor the performance characteristics will be written back to the BCHAwork item 270. The refined information will be used by the BCHA system200 if the BCHA work item 270 is redistributed to a different BCHAapplication 268 as well as the BCHA system Commissioner module 210, theBCHA Control module 215 and/or related BCHA Control applications forresource planning, adjustment and BCHA component redistribution.

Loading characteristics are specific to the BCHA application 268 whichassigned to process the BCHA work item 270. The loading is arepresentation of the computational resources that the BCHA work item270 consumes in the BCHA application(s) 268 and will described asdescribed as an execution unit. The BCHA application 268 loading is usedby the BCHA application Manager to instantiate new instances of BCHAapplications for load balancing and more importantly to maintain therequired availability level of the BCHA system 200. The characteristicsin the BCHA work item will be categorized into “must have” and“desirable”. The BCHA system 200 must match all “must have”characteristics before for making an redistribution/assignment. The“desirable” characteristics will be matched if possible. However, otherrestraints such as lack of available resources may lead to assignmentswhich do not match the “desirable” characteristics.

Rules for assignment will evolve with the BCHA system 200. Initial rulesmay only take into account matching BCHA application types and totalexecution unit loading. However, rules such as multi-core, asset type,platform type, and others may be applied in the future. These assignmentrules may be extended by the BCHA Application Configurators as BCHA workitems are generated and/or updated. As previously stated, the BCHA workitem assignment may not succeed if meta-data is either missing or ifthere is more meta-data than is understood. In these cases sub-optimalassignments may occur but there will be no system failures. The newrules will follow the paradigm of required and ancillary. Note that if arequired rule is not known to the Boundary-less system, assignment willstill be performed with the expectation that the BC application RuntimeInstances will reject the assignment if inappropriate. The BCHAapplication 268 should match the configurator and understand the latestcharacteristics specified by the configurator.

Resource planning is related but completely separate from BCHA workitems and BCHA work item assignments. The BCHA system 200 services forBCHA work item assignment merely assign BCHA work items 270 to availableBCHA computing resources 240/250. If there are insufficient resourcesthen errors will be generated and remediated by the BCHA WI Pool Managermodule 221. Another of the BCHA system control application is a BCHAApplication Planner module 213. Through the BCHA Application Plannermodule, BCHA applications 268 as well as Core BCHA services andapplications are designated for deployment to BCHA computing resources240/250. The output from the BCHA Application Planner module 213 is usedby the provisioning services to set up the resources for the BCHA system200 (described in FIG. 3A). The BCHA Application Planner 213 can utilizethe information in BCHA work items 270 as a guide for planning. Thecapacity characteristics in the BCHA work items 270 can be used by theBCHA Application Planner 213 when calculating recommended BCHA system200 configurations, number of BCHA applications 268 and BCHA computingresource 240/250 needed to achieve the required availability forparticular Industrial Execution Process. Similarly, the BCHA Controlmodule 215 and BC work item Pool Manager module 221 can provide systemnotifications that there are insufficient resources available.Similarly, additional system load can be create as BCHA ApplicationConfigurators 211 generate additional BCHA work items 270 for execution.Users can interact with the BCHA Application Planner 213/BCHA SystemCommissioner module 210 to provision additional BCHA computing resource240/250.

BCHA work items provide a finer granularity of work definitions than aclassical configuration which is deployed to a specific PLC or DCScontroller. One advantage of the finer granularity is automatic BCHAController module 215/BCHA WI Pool Manager module 221 load balancing inthe BCHA system 200. Rather than requiring a user to calculate thesystem loading and assign BCHA applications 268 to different BCHAcomputing resources 240/250, the BCHA system 200 can continuouslymonitor and adjust the load placed on BCHA computing resources 240/250.The load balancing will initially implement preliminary rules such asmaintaining an even BCHA work item 270 load on every BCHA computingresources 240/250. However, the load balancing can be expanded toincorporate more complex rules such as shifting work to low energyconsumption resources allowing more profitable BCHA system 200utilization.

Granularity also allows the work being performed in a given BCHAapplication 268 can be redistributed among other BCHA applications 268in the case of a BCHA computing resources 240/250 failure (describedbelow in FIGS. 5A, 5B1, and 5B2). Rather than shifting all of the workto a BCHA applications in a spare BCHA computing resources 240/250, thework can be divided among any BCHA application(s) associated withremaining Active BCHA computing resources 240/250 associated with a M:Nworking configuration. This BCHA work item management implements M:Nworking configuration redundancy models. In some instances, a M:N+Rworking configuration redundancy model may be implemented where one ormore addition BCHA computing resources 240/250 need to be requested andprovisioned to supplement existing BCHA computing resources 240/250 andprovide a redistribution target for a particular redistribution element.Performance considerations may require that BCHA applications 268 haveconfiguration data pre-loaded for BCHA work items 270 which they may beasked to execute but are not currently executing. This allows a fasterfailover as the re-assignment of a BCHA work item(s) and would requirethe new BCHA application 268 to load the latest state data and not thefull configuration for the BC work item.

FIG. 3F1 illustrates aspects of how Boundaryless Control HighAvailability (BCHA) Architecture attributes, capabilities, andcharacteristics are managed and coordinated using BCHA data servicesModule 230. Each BCHA component associated with the BCHA systemarchitecture has BCHA system attributes that include BCHA componentcapabilities and characteristics that are stored in HA Data ServicesModule 230 as each of the components are instantiated/registered duringthe BCHA system development process. FIG. 3F1 illustrates a hierarchicalinterdependence of the layered elements associated with a BCHA systemcomponent. Specifically as illustrated in FIG. 3F each layer BCHAapplication work item layer 376, BCHA application layer 377, BCHAControl application layer 378, BCHA Container/Resource layer 379 andBCHA computing resource layer 380 respectively contribute BCHA systemAttributes for a BCHA system component as capabilities/characteristic.BCHA system Attributes ultimately factor in the BCHA Control module BCHAsystem management and/or BCHA redistribution element redeployment.

The BCHA system control applications 205, such as BCHA Control moduleand/or BCHA Reliability Engine module uses these requirements todetermine the system needs for BCHA computing resources 240/250 tofacilitate load-balancing. BCHA Control module 215 can use BCHA systemAttributes to identify which BCHA computing resources 240/250 aresuitable for a given application based upon predetermined applicationcharacteristics (e.g., application meta-data). The BCHA reliabilityengine module 220 can use BCHA application characteristics to manageprovisioning rules. The BCHA reliability engine module 220 can alsocompute system availability metrics for the BCHA system 200. Thisalgorithm to calculate real-time BCHA system 200 availability metricsmaximizes the opportunity for system users to achieve best opportunityto respond before negative impact (e.g., provide additional requestedresources before a safety system shuts down the BCHA system). In someembodiments, the actual availability of the system is based on currentavailable BCHA computing resource 240/250 and the BCHA Active/Inactiveapplications 268, the number of failed resources, the number of runningBCHA applications 268, applications and their priority/criticality, thenumber of inactive applications and their criticality, number ofadditional resources need to be provisioned to run every requiredapplication, and/or the like. BCHA systems facilitate significantflexibility in system implementations and be configured to achieve thedescribed benefits involving BCHA system management in a variety ofdifferent implementations/configurations. The following sequence ofFigures and corresponding description will describe in greater detailhow these features and functionality are achieved and accordinglydescribe how efficiencies and system efficacy improvements are alsoachieved.

FIG. 4 illustrates aspects of how Boundaryless Control High Availability(BCHA) application(s) are executed. In FIG. 4, BCHA application 268executes as App _1 450 on a BCHA computing resource 240/250. The BCHAcomputing resource 240/250 registered capabilities/characteristics areupdated with the BCHA Data Service 230 as any change are detected in acontrol loop monitoring BCHA computing resource 240/250 data. App _1450, connects with the BCHA Data Service in 451, updates BCHAapplication capabilities/characteristics in step 452 (if appropriate)and gets any assigned BCHA work items 270, in step 453.

In executing assigned BCHA work item 270, App 1 updates the operationalstate in step 455, process work item 1_1, in step 456, updates work itemcapabilities/characteristics in step 457 (if appropriate). Steps BCHAwork item execution 458, operational state update 459, WI data recordupdate in BCHA data services module 220 and loop until complete step 461illustrate an example of elements associated with application work itemprocessing. The BCHA application periodically checks to determinewhether BCHA data services module 230 has additional BCHA work items tobe assigned to the particular BCHA application in step 462.

FIG. 5A illustrates aspects of BCHA load-balancing opportunities for aBCHA system. One key aspect of BCHA system 200 functionality is theability to load balance system elements to achieve High Availabilityrequirements associated with a particular Industrial Execution Processand related process control application requirements. Dynamic loadbalancing is a key feature that also facilitates making M:N workingconfigurations possible and viable for BCHA systems 200 where redundancyand high availability are key BCHA system 200 requirements. FIG. 5Aillustrates aspects of load-balancing types associated with a BCHAsystem 200, such as Resource Failure DetectionLoad-Balancing/Redistribution and HA-M:N Validation Load-Balancing. Itis to be understood that other types of load-balancing are alsopossible, depending on the nature of the particular implementation andBCHA system components, characteristics, and/or capabilities.

In FIG. 5A, the BCHA Application Configurator 211 provisions an initialpool of BCHA work items 270 for distribution as the system transitionsto an “Operational” state, in step 500. The BCHA Control applications205 engage the BCHA system 200, in step 503. The BCHA WI Pool Managermodule distributes the BCHA work items 270 to the appropriate BCHAapplications 268/BCHA computing resources 240/250. In step 506, the BCHAControl module 215/BCHA Reliability Engine 220 start monitoring systemhealth/operational state data maintained in the BCHA data servicesmodule 230. BCHA Control module 215/BCHA Reliability Engine module 220are monitoring BCHA system 200 health/operational state in order toidentify Resource Failure Detection Load Balancing opportunities 509 andloop through step 511, and back to step 506 to continuously monitoruntil a failure is detected. Depending on the particular implementationand Industrial Execution process requirements, the frequency of thelooping may be adjusted according to the particular implementation, torange from constant looping as a background workstream, to 5 ms, to 5seconds, to 5 minutes to every 5 hours or otherwise adjusted based whatmay be appropriate for the particular BCHA system 200 implementation.

In step 509, if a Resource Failure Detection load-balancing opportunityis identified, a Resource Failure Detection load-balancing opportunityis initiated in step 513 and will determine the next steps/timeline forBCHA system action. In step 515, the BCHA system 200 and BCHA Controlmodule Resource Failure Detection load-balancing determines which BCHAsystem components should be redistributed as redistribution elementsbased on which BCHA computing resource 240/250 has failed. The BCHAControl module 215 determines the Redistribution type in step 517,determining a Redistribution Pool in step 518 and a specificredistribution target in step 519. In step 521, the BCHA Control module215 executes the redistribution transferring the Redistribution elementsto the Redistribution targets. The BCHA Control module 215 attempts tomaintain (1) system viability; and (1A) system high availabilityoperational characteristics and consequently a viable M:N workingconfiguration. For a Resource Failure Detection Redistribution, the BCHAsystem is challenged to maintain (1) system viability; and (1A) systemhigh availability operational characteristics despite an actualcomputing resource 240/250 failure.

The BCHA Control module 215 runs a background task that iterativelysimulates BCHA system 200 computing resource 240/250 failures tovalidate BCHA system high availability requirements and a viable M:Nworking configuration—as HA-M:N Validation Load-Balancing in step 523.The BCHA Control module 215 iteratively loops, and simulates therespective computing resource(s) 240/250 associated with the BCHA systemfailing and being redeployed in accordance with a Resource FailureDetection Redistribution in step 525. After the Resource FailureDetection Redistribution, the BCHA Control module 215 determines theRemediation Operational State in step 527. If after the simulation ofeach computing resource 240/250, the Resource Failure DetectionRedistribution result in all Green state redeployments—the BCHA systemis indeed a viable M:N working configuration. If there is a non-Greenstate after each simulated the Resource Failure DetectionRedistribution, then the BCHA system 200 is an M:N+R workingconfiguration—additional computing resource is necessary to maintain theHigh Availability Requirements of the BCHA system 200 and transition theBCHA system to a viable M:N working configuration. Resource FailureDetection Redistribution and Active Load Balancing/Simulation aredescribed in greater detail with regard to FIGS. 5B1-5B2 and 5C,respectively.

FIG. 5B1 illustrates aspects of BCHA load-balancing opportunitiesassociated with Failure Detection/Remediation for a BCHA system. In theevent of BCHA computing resource 240/250 failure, the BCHA system 200executes Resource Failure Load-Balancing Redistribution and works tomaintain (1) system viability, (1A) viable M:N working configurations,as well as (1B) system high availability operational characteristics.Depending on the particular Industrial Execution process andapplication, the BCHA system 200 may be configured to focus primarily on1 and 1A, while 1B may not be as critical of an operational requirement.The BCHA system 200 may be pre-configured request, receive, provisionand transition redistribution elements to supplemental resources quicklyand efficiently—effectively operating an M:N+R working configuration. Insome implementations the BCHA system 200 can auto-remediate by workingwith a BCHA computing resource provider to obtain pre-configured BCHAcomputing resources 240/250 without generating a request for additionalresource. Both M:N and M:N+R BCHA system working configurations achievethe benefit of obviating all the additional cost/expenses of 1:1physical hardware redundant working configurations. Also, both al soachieve better operational efficiency and resource utilizationcharacteristics, as compared with 1:1 physical hardware redundantworking configurations.

In FIG. 5B1, step 531, the BCHA Controller 215/BCHA Reliability 220Engine monitoring the BCHA data services module 230 detect a BCHAcomputing resource 240/250 failure. In step 533, after detecting thefailure, the BCHA Controller 215 determines which BCHA system componentswere executing on the failed BCHA computing resource 240/250 and need tobe redistributed as redistribution elements (e.g., BCHA applications 268and/or BCHA work items 270 executing on the failed BCHA computingresource 240/250). Once the redistribution elements are determined, thecharacteristics/capabilities associated with both the failed BCHAcomputing resources 240/250, and the redistribution elements areanalyzed, in addition to a current redistribution type setting in step535. A variety of redistribution types are possible including fastestredistribution, balanced redistribution, optimal redistribution,critical redistribution element redeployment or maximized use ofexisting resources (where supplemental/additional BCHA computingresources 240/250 may be scarce and/or difficult to provide). Theseredistribution types are provided as non-limiting examples, other typesare possible depending on the particular BCHA system implementation,corresponding Industrial Execution process and/or other configuration oroperational characteristics/capabilities. In step 538, the BCHA Controlmodule 215 starts to determine redistribution target pool (based on thedetermination and analysis from steps 533 and 535) identifying possibleredistribution targets (e.g., BCHA applications 268 and/or BCHAcomputing resources 240/250) that potentially may be used forredeployment of the redistribution elements.

In order to maximize the likelihood of a viable existing resourceredistribution target pool, the match matching methodology focuses ontwo groups of parameters associated with BCHA system componentcapabilities and characteristics—(1) BCHA redeployment requirements(e.g., high availability requirement; particular I/O type; executionunit processing load; and (2) BCHA redeployment preferences (e.g.,near-real time execution, etc.). There are typically two possible typesof redistribution target Pools: (1) a target pool using only existingresources (e.g., M:N working configuration) where all BCHA redeploymentrequirements are met and the redeployment option that maximizes thenumber of BCHA redeployment preference(s) satisfied is selected; or (2)a target pool using existing resources and supplemental requestedresources (e.g., M:N+1 or M:N+R). In FIG. 5B1, step 539 involvesdetermining the best solution possible as a redistribution target poolcreated from existing BCHA system components with several options forvarious redistribution element redeployment targets. A variation of thisoption is a perfect fit scenario, in which there is at least oneexisting BCHA target(s) that facilitates a single redeploymentoption—meeting all BCHA redeployment requirements. In step 539, the BCHAControl module determines whether there is an immediate targetredeployment option available. If there is more than one potentialredistribution target option as determined in step 541, the BCHA Controlmodule 215 analyzes BCHA redeployment requirements and BCHA redeploymentpreferences to identify an option that complies with redistribution type(e.g., fastest failover type is the first redistribution optionidentified even if other may exist; optimal is the redistribution optionthat meets the most redeployment requirements/preferences) and selects aredistribution target in step 543. In step 544 the redistributionelements are transitioned to the redistribution targets and made activein step 544. In some implementations, the redistribution elements accessthe BCHA data services module 230 and get the operational/configurationdata associated with the deployment at the time (or just before) of theBCHA computing resource failure. Accordingly the redistribution elementscan effectively pick up where they stopped with minimal time/data loss.

If there is not an immediate target available in step 539, in step 545the BCHA Control module 215 can execute a simulated workingconfiguration load redistribution to determine if shifting active BCHAapplications 268/BCHA work items 270 creates an available target for theredistribution element without stopping BCHA Components or requestingsupplemental BCHA computing resources 240/250. If the simulated workingconfiguration load redistribution creates a redistribution target, theBCHA Control module redistributes the active BCHA applications 268/BCHAwork items 270 to create the target in step 542 and select the target instep 543. In step 544, the redistribution elements are distributed tothe redistribution target and made active.

If simulated working configuration load redistribution in step 545 doesnot create an available redistribution target, the BCHA Control module215 attempt to stop non-critical (and/or some implementations lowpriority) Components to try to creates an available redistributiontarget in step 547. If stopping a non-critical BCHA computing resource240/250 creates an available redistribution target, the BCHA Controlmodule 215 determines whether degraded non-critical time-slicingprocessing is enabled in step 548, and if it is shifts non-critical BCHAcomponent(s) into a time-slicing queue where the member of the queueeach a portion of dedicated processing execution resource (if and asadditional processing resource is provided) in step 549. For example, iftwo non-critical applications are in the queue, each would get have thenormal processing execution resource. The queue may also rebalance basedon BCHA application priority, e.g., if App _1 may get 75% of theprocessing execution resource because it is higher priority than App 2which only gets 25% of the processing execution resource. The BCHAControl module 215 the stops the non-critical BCHA component(s) in step550 and creates the target pool in step 552. In step 544, theredistribution elements are distributed to the redistribution target andmade active. If stopping non-critical component(s) did not create anavailable redistribution target, the BCHA Control module 215 attempts tocreate an available redistribution target by also stopping critical BCHAcomponents in step 551 to try create an available redistribution target.If stopping critical BCHA components in step 551 creates an availableredistribution target, the BCHA Control module stops at least onecritical BCHA component and one or more non-critical component in step552 and 550, respectively to create the target redistribution pool instep 542 and select the redistribution target in step 543. In step 544,the redistribution elements are distributed to the redistribution targetand made active.

At this point, after conducting simulated working configuration loadredistribution, checking non-critical components, and checking criticalcomponents (alone or in combination with non-critical components) theBCHA Control module 215 may have to request (or auto-remediate)supplemental BCHA computing resources 240/250 in step 553 and provisionsupplemental BCHA computing resources 240/250 in step 554. Havingconducted each of the previous checks, the BCHA Control module canidentify which attempt was the closest to actually creating anavailability redistribution target and define the type, sizecapabilities/characteristics associated with the requested supplementBCHA computing resource to minimize cost or provisioning time or anumber of the BCHA computing resource parameters. In someimplementations, the supplement BCHA computing resource configurationmay be based on a BCHA Control module determination of what would benecessary to provision to ensure robust M:N working configuration. Withthe provisioned supplemental BCHA computing resource 240/250, the BCHAControl module can create the redistribution target pool in step 442 andselect the redistribution target in 543. In step 544, the redistributionelements are distributed to the redistribution target and made active.

FIG. 5B2 illustrates aspects of BCHA system recovery operational stateassociated Failure Detection/Remediation load balancing opportunitiesfor a BCHA system. In FIG. 5B2, in step 560 after the BCHA system 200facilitates redistribution/redeployment to maintain system viability asthe primary goal of the BCHA system 200, in step 560 the BCHA Controlmodule 215/BCHA Reliability Engine 220 checks BCHA operational state totry to comply with BCHA system goal 1A—complying with BCHA system HighAvailability Requirements. In step 563, the BCHA Reliability Enginemodule 220 check operational metrics/state data in the BCHA dataservices module 230 and confirms that Green state remediation has beenachieved. More specifically, in state diagram element 565, all BCHAapplications 268 and BCHA work items 270 have been redeployed and arefully operational with all BCHA system High Availability requirements.If Green state remediation is achieved, the BCHA Control module 215transitions back to periodic/continuous BCHA system health/operationalstatus monitoring, in step 568.

In step 563, if BCHA Control module 215 determines green stateremediation has not been achieved, the controller will develop andexecute a BCHA system recovery plan in step 571. In FIG. 5B2, the firstaspect of developing a BCHA system recovery plan is determining whichNon-Green state is associated with the BCHA system 200 operationalstate. If as Failure Detection Redistribution, the BCHA Control module215 was able to keep the system running but had to suspend a criticalBCHA application 268, in order to keep a higher priority critical BCHAapplication 268 running, the BCHA system 200 is considered to be in aRed Operational State—as in state diagram element 573. If the BCHAControl module 215 was able to keep the system running but had tosuspend one or more non-critical BCHA application(s) 268, the BCHAsystem 200 is considered to be in an Orange Operational State—as instate diagram element 575. A third non-green operational state is ayellow state (state diagram element 577) in which all redistributionelements have successfully been redeployed, but the BCHA system 200 hasone or more BCHA applications 268 that do not meet BCHA system 200 HighAvailability requirements.

In some implementations, suspended non-critical applications may bemaintained in an active, yet degraded operational state. Morespecifically, suspended non-critical applications may be added to adegraded progression queue and the BCHA Control module 215 cansequentially iterate through the suspended applications to providepartial processing/computing resources for some aspects of theredistribution elements in order to keep the system operational untiladditional resource can be provided. The BCHA Control module 215sequentially iterates a degraded application 268/work item 270 queue andsystematically provides at least a portion of the redistributionelement's requested computing resource execution unit requirements.

In all Red and Orange operational states, the BCHA Control module 215can determine how much and what type of supplemental BCHA computingresources would be necessary to transition the BCHA system 200 back to afull Green operational state (565). The BCHA system can also determineand report whether the repair time—the time to transition back to aGreen operational state (565) can be achieved before an IndustrialExecution process safety system will transition shut down the IndustrialExecution process in order to avoid unsafe conditions/operation.Depending on the particular implementation, as well as the currentoperational characteristics, determined operational state andavailability of supplemental BCHA computing resources 240/250, thetransition back to green state may be a full, direct transition fromRed, Orange to Green or it may be a gradual, transition back to theGreen operational state (either path would have a repair time that isless that the Industrial Execution process safety system shut downtime).

The operational states discussed in FIG. 5B2 as Green, Yellow, Orangeand Red Operational states are provided to help illustrate aspects ofhow a BCHA system 200 can dynamically manage and coordinate various BCHAsystem components includes BCHA computing resources 240/250, BCHAapplications, 268 and BCHA work items to maintain one or more BCHAsystem 200 operational integrity, a viable M:N Working Configuration,and operation in accordance BCHA system 200/BCHA application HighAvailability Requirements. Depending on the implementation, differentfunctional operational state names, operational characteristics and evennumber of operational may be implemented. For example, Green may berenamed as “Viable MNHA Operational State” and abbreviated as“MNOK_HAOK”, Yellow may be renamed as “Viable MN Operational State” andabbreviated as “MNOK_HADG”, Orange may be renamed as “Degraded MNOperational State” and abbreviated as “MNDG_HACRT” and Red may berenamed “Critical Systems” Operational State” and abbreviated as “CS” or“MNCRT_HACRT.” Instead of involving both M:N and HA operational states,a subset is also possible focused on one BCHA operational parameter. Forexample, a BCHA system configured with three operational states (orsub-states) focused on one BCHA operational parameter is possible as“Viable HA” or “Viable MN”; “Degraded HA” or “Degraded MN”; “CriticalHA” or “Critical M:N.” Other BCHA operational parameters may also beused to develop state controls, (e.g., work item execution loaddistribution as “Heavy”, “Medium”, and/or “Light”. As another example, aBCHA system 200 can be configured with binary operational states, wherethe system is either “Operational or Non-Operational.” These examplesare provided to be non-limiting examples and the BCHA system 200 can beconfigured to facilitate a number of other operational implementations.

FIG. 5C illustrates aspects of active BCHA systemload-balancing/remediation associated with M:N Validation. FIG. 5Cillustrates aspects associated with HA-M:N Validation Load-Balancing andM:N working group validation/remediation. More specifically, in order toensure a viable M:N working configuration that has sufficient sparecomputing resource execution availability without the actual 1:1redundant physical hardware, the BCHA Control module 220 executes aBackground activity involving HA-M:N Validation Load-Balancing tofacilitate M:N working group validation/remediation scenario testing.M:N working group validation/remediation executes as an ancillary BCHAapplication 268 to iteratively simulate BCHA computing resource 240/250failure, resource failure detection load balancing, and subsequentoperational state testing to determine whether for a particular BCHAcomputing resource 240/250 failure the M:N working configuration hassufficient computing resources execution availability to facilitate aredeployment using only existing computing resources 240/250 whilemaintaining the High Availability operational requirements associatedwith the BCHA system 200. HA-M:N Validation Load-Balancing is a flexiblesimulation process and can validate a variety of BCHA systemconfiguration. In the example described in FIG. 5C, the BCHA Controlmodule 215 steps through and simulates a 1^(st) degree failure, wherethe validation report reflects an aggregated remediation state—theresults of simulating a failure for each BCHA computing resource 240/250associated with an M:N working configuration one at a time—for example aBCHA system with five BCHA computing resource 240/250 would execute fivesimulation loops—and during each simulation loop a different BCHAcomputing resource 240/250 would fail. If each of the five simulationloops have a green remediation state, the M:N working configuration hasbeen validated. If any one of the simulation loops result in a non-greenremediation state, the M:N working configuration may have to be furtherdevelop as an M:N+R working configuration, i.e., supplemental resourcemay be necessary to achieve a viable M:N working configuration thatexecutes with an optimized balance of spare execution resource, whileminimizing additional computing resource requirements and stillcompletely obviating the old 1:1 redundant physical hardwarerequirements.

In FIG. 5C, the BCHA Control module initiates a HA-M:N ValidationLoad-Balancing execution cycle in step 575. Depending on theimplementation, corresponding Industrial Execution process and otheroperational characteristics, HA-M:N Validation Load-Balancing may beexecuted as a continuous loop, or with a static or dynamic executionfrequency—Industrial Execution processes associated with Oil and Gasrefinery operational control system may involve more timecritical/sensitive operations, than Industrial Execution processesassociated with a waste water treatment plant or other less timecritical/sensitive operations. In step 577, the BCHA Controller 220determines the HA-M:N Validation Load-Balancing validation degree as forexample a 1^(st) degree failure simulation. In some implementations, thesimulation failure degree may be established as system default andupdated by a system operator as appropriate. The validation degree setsthe number of computing resources 240/250 failures(s) that BCHAController 220 will simulate during an iteration (e.g. 1^(st) degreefailure simulations validate M:N working configuration where onecomputing resource 240/250 fails, 2^(nd) degree failure simulationsvalidate instances where two computing resources 240/250 fail, etc. . .. ). In the example from FIG. 5C, the BCHA Controller 220 works in asequestered segment of the BCHA Data Service module 230 that ispopulated with BCHA system 200 architecture, component, operational dataassociated with the system as the time an instance of HA-M:N ValidationLoad-Balancing is initiated. In step 579, BCHA Controller 220 simulatesthe failure of a first computing resource 240/250 associated with theBCHA system 200. In step 581, the BCHA Controller module 215 simulatesBCHA Failure Detection Resource Redeployment as described in FIG. 5B1and FIG. 5B2. In step 583, the BCHA Controller module 215 determines theRemediation Operational State after the failure redistribution elementshave been redeployed to redistribution targets. If the RemediationOperational State involves a Green state in step 585, the M:N workingconfiguration is validated for the failure of the respective BCHAcomputing resource 240/250. However, a robust viable M:N workingconfiguration, each BCHA computing resource 240/250 associated with theBCHA system 200 would also have to have a Green state RemediationOperational State. Accordingly, the Remediation Operational State isrecorded for the respective loop of the HA-M:N Validation Load-Balancingvalidation in step 587, the BCHA Control module 220 checks if additionalBCHA computing resource 240/250 failures need to be simulated for thevalidation in step 589. In step 591, the M:N working configurationcomputing resource count is incremented and the simulation initiates thenext loop simulating failure of the next BCHA computing resource 240/250in the sequence, looping back to the step 579.

In FIG. 5C, if the Remediation Operational State determination in step583 identifies a non-Green state as in step 593, the simulated failureof the respective computing resource 240/250 does not comply with a M:Nworking configuration. The system may still be operational, but in aM:N+R working configuration where supplemental/additional computingresource 240/250 may be necessary to transition Remediation OperationalState back into the Green state and achieve a viable M:N workingconfiguration. Based on the capabilities/characteristics of the failedcomputing resource 240/250, as well as the capabilities/characteristicsof the redistribution elements, the BCHA controller 220 can determinewhat type/how much supplemental/additional computing resource 240/250may be necessary to shift from M:N+R working configuration to a viableM:N working configuration. Depending on the particular systemconfiguration, the M:N+R working configuration transition requirementsmay be reported as they are detected. Alternately, as in the exampleillustrated in FIG. 5C, the M:N+R working configuration transitionrequirements are determined in step 593 and recorded in step 587.

If all failures have been simulated for all Working Configuration BCHAcomputing resources 240/250 in step 589 associated with the BCHA system200, step 595 involves developing the M:N Working ConfigurationValidation Report and confirming an Auto-Execution for system requestfor supplemental/additional BCHA computing resource 240/250 based on anyM:N+R working configuration transition requirements associated with theexecuted HA-M:N Validation Load-Balancing validation. In someimplementations, M:N Working Configuration Validation Report mayidentify a variety of operational validation results, as well as systemgenerated remediation actions to address issues identified during thesimulation/validation. For example, system generated remediation actionsmay include a proposed system-generated list of supplemental computingresource(s) 240/250 to be requested, provided, and provisioned toachieve a viable M:N working configuration for the BCHA system 200. Thereport may also include detail as to how one or more specific computingresource 240/250 failure(s) is accounted for in proposedsystem-generated list of supplemental computing resource(s).

In an implementation, the BCHA Control module 215 may include anauto-remediate feature as in 595. More specifically, the BCHA Controlmodule 215 may be configured to connect with a pre-approved BCHAcomputing resource 240/250 provider (e.g., Public Cloud ServiceProvider). Once connected with the provider, the BCHA Control module 215may directly access and request provisioning of one or morepre-configured or customized BCHA computing resources 240/250.Accordingly, the BCHA Control module 215 can quickly, efficientlyremediate an issue determined through HA-M:N Validation Load-Balancing,request, provision, and redeploy redistribution element to SupplementBHCA computing resources 240/250. The BCHA Control module 215 may selectcompare pre-configured BCHA computing resources 240/250 with theredistribution required capabilities and characteristics to determine abest fit pre-configured BCHA computing resources 240/250. The BCHAControl module 215 may select compare pre-configured BCHA computingresources 240/250 that have additional capabilities and characteristicsthan those identified to remediate issues identified during remediationoperational state determination. The BCHA Control module 215 cangenerate a similar request for a Customized BHCA computing resource240/250—specifically requesting a Customized BHCA computing resource240/250 additional capabilities and characteristics than thoseidentified to remediate issues identified during remediation operationalstate determination.

With the additional capabilities and characteristics, the BCHA Controlmodule 215 may execute an optimal load redistribution to shiftapplications across available BCHA computing resources to minimizeprocessor load, BCHA work item execution unit load, BCHA applicationload, and/or a combination of two or more minimization parameters (e.g.1^(st) BCHA work item execution unit load, and 2^(nd) BCHA applicationload). The BCHA Control module 215 can conduct the optimal loadredistribution determination ahead requesting either a pre-configured orcustomized BCHA computing resource. 240/250.

FIG. 6A-FIG. 6B7 illustrate aspects of an example of how a BCHA system200 works to remediate BCHA computing resource 240/250 failures andmaintain a viable M:N working configuration. FIG. 6A illustrates a BCHAsystem that includes five BCHA computing resources 240/250 (identifiedin FIG. 6A as CR-1 610, CR-2 620, CR-3 630, CR-4 640 and CR-5 650),respective BCHA application(s) 268 (identified in FIG. 6A as App _1 612,App _2 614, App _3 616, App _4 626, App _5 642, App _6 645 and App _7654) executing on the BCHA computing resources 240/250, and BCHA workitems 270 (identified in FIG. 6A as WI 1_1 613, WI 2_1 615, WI 3_1 617,WI 4_1 627, WI 5_1 633, WI 6_1 645 and App_7_1 655) executing on therespective BCHA applications 268. Each of the BCHA system components arein operative communication with BCHA data services 230 and BCHA Controlapplications 205, specifically BCHA Control module 215, BCHA ReliabilityEngine module 220, and BCHA WI Pool Manager module 221 are activelyengaging the BCHA system 200 components.

The Figure sequence 6B1-6B7 is an example implementation of how the BCHAsystem 200 works to identify and remediate the failure of an BCHAcomputing resource 240/250 and redeployment of redistribution elementsassociated with the failed BCHA computing resource 240/250.redistribution elements may include the BCHA application(s) 268executing on the BCHA computing resource and/or the respective BCHA Workitems 270 executed by respective BCHA application(s) 268. Each of theFIGS. 6B1-6B7 illustrate the key operational states associated with eachof the steps the BCHA system executes to remediate a Resource FailureDetection as Execution Timeline 699.

FIG. 6B1 illustrates BCHA computing resource 240/250 and BCHAapplication 268 capabilities, characteristics, as well as BCHAoperational state associated with the BCHA work item 270. In FIG. 6B1,the BCHA system is operating in a Green state with all high availabilityrequirements satisfied.

The BCHA system 200 components are illustrated in FIG. 6B1 is a steadystate operational view as BCHA data services data associated with andstored in BCHA Date Services as of a time/state 1 600. In State 1, allBCHA computing resources 240/250 are executing in a Green state as aviable M:N working configuration, where all BCHA system 200 HighAvailability operational requirements are satisfied. State 1 Diagram 600illustrates the respective capabilities/characteristics of computingresources CR1-CR5, APP_1-App_7 and the respective work items 1_1-7_1, aswell as the BCHA system component operational state associated with eachBCHA system component as Active, Inactive, Hold, (and in FIG. 6B2 aftercomputing resource CR-4 fails—“Failed”) respectively. The Figuresequence is an example implementation of how the BCHA system 200 worksto identify and remediate the failure of an BCHA computing resource240/250, the BCHA application(s) 268 ex FIG. 6B2—BCHA—FailureDetection/HA Operational assessment—CR4 Fails/Failure Detection;

FIG. 6B2 illustrates the operational states as BCHA computing resourceCR-4 fails, as well as the instances of App_5/work item 5_1 and App6/work item 6_1. After CR-4 Fails, BCHA Control module 215 detects thefailure in BCHA data services module 230 and updates the operationalstate associated with CR-4.

In FIG. 6B3, the BCHA Control module 215 determines the capabilities andcharacteristics associated with the failed computing resource 240/250,including computing resource Availability Requirements, as well asReal-Time operational requirements. The BCHA Control module 215 alsodetermines the capabilities and characteristics associated withApp_5/work item 5_1 and App 65/work item 6_1 including applicationPriority, application Availability Requirement, as well as applicationReal-Time Requirements. In some BCHA system 200 implementations, BCHAapplication 268 priority is used to execute the Redistribution Type—forexample, higher priority redistribution elements may be redeployedbefore lower priority redistribution elements to potentialredistributions target(s) with in a Fast redeployment redistributiontype, In an optimal redeployment redistribution type, the BCHA Controlmodule may attempt to suspend lower priority applications, in favor ofcreating availability for a redeployment for higher priorityapplications. Depending on the implementation, othercapabilities/characteristics may include dedicated I/O connectionsassociated with a particular computing resource 240/250 or BCHAapplication 268/BCHA work item 270, as well as processor loadingcapabilities or processor execution requirements.

In FIG. 6B4, the BCHA Control module 215 assesses the capabilities, thecharacteristics and availability requirements of the other existingcomputing resources 240/250 (e.g, CR-1, CR-2, CR-3 and CR-5) associatedwith the BCHA system 200. In the example, each computing resource240/250 has a capability, with regards to processing memory/processingpower, to support three BCHA applications 268/work item 270.Accordingly, CR1 and CR-2 are excluded by the BCHA Control module 215from the redistribution pool of potential redeployment targets. As such,the redistribution pool is generated as including CR-3 and CR-5. Inorder to maintain a viable M:N working configuration, the BCHA Controlmodule 215 will check the other characteristics/capabilities of CR-3 andCR-5, as well as App_5/work item 5_1 and App 6/work item 5_1 and seethat both CR-3 and CR-5 are potential targets capable of taking eitherfor both redistribution elements—failed application/work items in thisexample as the redistribution pool.

The BCHA Control module 215 selects CR-3 as the redistribution targetfor App_5 since CR-3 meets these first two checking (i.e (1)availability to take a redistribution element; and (2) has an existinginstance of the redistribution in an Active/Inactive state). The BCHAControl module 215 tries to balance fast failover while also trying tobalance/spread the redistribution elements across redistribution poolpotential targets to minimize processor loading and to keep as manyavailable redistribution slots open across the BCHA computing resources240/250 associated with a particular M:N working configuration. Byworking to maximize, as many available redistribution slots as possible,the BCHA Control module maximizes the likelihood a redeployment ispossible within an existing M:N working configuration, particular inworking configurations that includes a broad heterogenous pool of BCHAcomputing resources 240/250 and BCHA application system types/hardwaretypes with a corresponding broad ranging spectrum of capabilities andcharacteristics.

FIG. 6B5 illustrates how the aspects of how the BCHA Control module 215selecting specific BCHA computing resources 240/250 as redistributiontargets for the respective redistribution elements. In the example, BCHAControl module 215 determines the redistribution type selected is(instead of “Balanced Failover Redeployment,” “Optimal FailoverRedeployment,” or “Fastest Failover Redeployment”). The redistributiontypes are particularly useful in determining redistribution targets,where the several possible redeployment target scenarios for aparticular redistribution pool. Depending on the implementation, the M:Nworking configuration operational data, BCHA system componentcapabilities/characteristics and the particular available redistributiontypes, there may be instances where each redeployment type would resultin selecting the same redistribution targets. There may also beinstances depending on the loading characteristics of a particular M:Nworking configuration as well as the particular type of Resourcefailure, where supplemental/additional computing resources are going tobe necessary to maintain system viability, as well as BCHA system highavailability requirements. For a Balanced Redistribution type, afterchecking for existing instance that are Inactive and can be made activeand take on a redistribution element, or that have processing loadavailability (e.g., executing fewer than 3 applications at the time ofassessment).

In the example, the “Balanced Failover type” the BCHA Control module 215checks if any of the redistribution targets in the redistribution poolcurrently have an existing instance of the application executing in anActive/inactive state (this is also a first check for the FastestFailover Redeployment redistribution type). Accordingly, FIG. 6B5, theBCHA Control module 215 identifies an instance of App _5 executing onCR-3 in an inactive state. After confirming CR-3 has does not have afully loaded processor, BCHA Control module 215 confirms whether CR-3matches any other required redistribution characteristics/capabilitiesassociated with failed App_5, as well as checks if any secondaryredistribution characteristics/capabilities associated with failedApp_5, (e.g., a particular processing speed/processing power). In a“Balanced Failover type” If all required redistributioncharacteristics/capabilities are satisfied by more than one potentialredistribution target in a redistribution pool, the potentialredistribution target that satisfies the most secondary redistributioncharacteristics/capabilities may be selected as the redistributiontarget (this is true for Optimal Failover Redeployment redistributiontypes as well).

FIG. 6B6 illustrates BCHA Control module redistribution of App_5/workitem 5_1 and App_6/work item 6_1 from failed computing resource CR-4,onto selected redistribution targets with App_5/work item 5_1 shiftingto CR-3 and App_6/work item 6_1 being instantiated and on CR-5 toexecute work item 6-1, respectively. For this example, the BCHAController redeployed the system by developing a redistribution poolfrom existing M:N working configuration resource.

In some implementations, in order to ensure the BCHA system 200continued operation using existing BCHA system components within an M:Nworking configuration, the BCHA Controller 215 maytemporarily/indefinitely suspend non-critical BCHA applications. Forexample, in an alternative embodiment illustrated FIG. 6B7, changes afew of the capabilities/characteristics associated with the exampleembodiment described in FIGS. 6B1-6B6. More specifically, in the exampleillustrated in FIG. 6B6, CR-4, App_6 has a redistributioncapability/characteristic requirement that does not make a redeploymentto CR-5 viable. For example, CR-4, App may have an I/O sensor inputrequirement that is not connected to CR-5. Instead, in the example, CR-2is the only other BCHA computing resource 240/250 that meets the I/Osensor input requirement at the time of the failure of CR-4 for the M:Nworking configuration. Accordingly, as described in the exampleembodiment described in FIGS. 6B1-6B6, CR-2 was excluded from theRedistribution target pool based on processor/load requirement where thecomputing resources 240/250 cannot execute more than three BCHAapplications at a given time. However, in this example, the BCHAapplication IO requirement in coordination with the App_6 has anapplication priority of 3, whereas App_4 has having an applicationpriority of 6. BCHA applications can also be tagged as Critical orNon-critical, which is a key parameter in determining whether a BCHAapplication 268 can temporarily/indefinitely suspended to createprocessor load availability and accommodate redistribution elements. InFIG. 6B7, App_4 is temporarily suspended, which creates processor loadavailability to accommodate a redeployment of FAILED App_6.

Once the redistribution elements have been redeployed to the selectedtargets and are active, the BCHA Controller 215 executes a remediationstate determination to verify whether even though BCHA redistributionelements have been redeployed and are active, the BCHA systemavailability requirements have been maintained. If the remediationoperational state (illustrated in FIG. 5B2) is Green, BCHA system goalsof (1) maintaining system operational, (1A) using only the existing BCHAsystem components to facilitate Resource Failure Redistribution; and(1B) maintain BCHA system High Availability Requirements have all beenmet. If the remediation operational state is not Green, the BCHA systemmay have achieved only (1) if the state is Red or (1) and (1A) if thestate is Orange or Yellow. In any event, if the remediation operationalstate is not Green, the BCHA Control module may need to request BCHAsupplemental/additional resources to execute a transition back to aGreen operational state where (1), (1A) and (1B) are all satisfied.

In FIG. 6B8, the BCHA Control module 215 determines through remediationstate determination whether each application executing has the requiredHigh Availability by analyzing the High Availability Requirement for theparticular BCHA application and adding the computingresource—Availability characteristics for each computing resourceexecuting an Active/Inactive instance of the particular BCHAapplication. In the illustrated example, APP_1 has a High Availabilityrequirement set to 0.999999; and App-1 is executing on two discrete BCHAcomputing resources 240/250, specifically CR-1 and CR-2. Accordingly,the BCHA system 200 meets App _1 High Availability Requirements despitethe Failure of computing resource CR-4 and redeploying redistributionelement using only existing computing resources 240/250 selected fromthe M:N working configuration. The BCHA Control module 215 iterativelychecks the High Availability Requirement for each BCHA application 268(in the example in FIGS. 6A-6B for App_1-App7). If the verification isnegative—for example App _5 has a High Availability Requirement of0.99999 and was redeployed to CR-3 which has a High Availabilitycharacteristic of 0.9999. The App _5 high availability requirement of0.99999 is no longer Green state, because of the failure of CR-4. WhenCR-4 was “Online,” CR-4's High Availability characteristic of 0.99999was sufficient to meet App_5's High Availability Requirement. However,Resource Failure Detection remediation state determination demonstratesthat BCHA system goals (1) and (1A) have been met, 1B fails because ifat least one BCHA application 268 High Availability Requirement is notmet, BCHA system High Availability Requirement also fail.

It is to be understood examples used herein are intended to illustratevarious features/functionality associated with BCHA systemload-balancing (both Resource Failure detection load balancing andActive Load Balancing). There may be other methodologies that can beused or implemented by the BCHA system to calculate High AvailabilityRequirements/determining High Availability Compliance. Furthermore, itis to be understood that the addition of BCHA computing resource 240/250High Availability characteristics and comparison with an BCHAapplications High Availability is just is one non-limiting example ofcalculating High Availability Requirements/determining High AvailabilityCompliance—other BCHA system operational parameter calculations arepossible and may be used in coordination with the BCHA system componentsin similar ways to those described herein to achieve BCHA system Goalsof (1), (1A) and (1B).

The High Availability Compliance failure discussed with regard to FIG.6B8 is an example of a Failure that would have been identified andremediated by BCHA Active Load Balancing described with Regard to FIG.5C. In the context of FIG. 6B8, with Z degree validation setting of 1,the BCHA Controller 215 would have iterated through simulations failingeach of CR-1, CR-2, CR-3, CR-4, and CR-5 during the Execution Timeline699—State 1 “Green” while all BCHA computing resources were Online,prior to CR-4's actual Failure. After simulating Resource FailureDetection Redistributions for CR-1, CR-2, CR-3, the BCHA Controller 215would simulate CR-4's Failure and identified—a Remediation OperationalState of Yellow due to App _5 High Availability Requirementnoncompliance with App_5's 0.9999 High Availability requirements in viewof the loss of CR-4's 0.99999 High Availability Characteristic. Inaccordance with FIG. 5C's step 595, the BCHA Control module develops theM:N Working configuration validation report and in this example wouldidentify App_5's High Availability Requirement non-compliance (as wellas any other non-compliance issues for the other BCHA applications basedon the iterative BCHA computing resource failure simulations). Inaddition to generating the report, the BCHA Control module can generaterequests for additional BCHA computing resources to remediate any HighAvailability Requirement non-compliance and/or M:N working configurationnon-compliance. Such remediation would involve a transition plan toshift from M:N+R working configuration back to a viable, Green state M:Nworking configuration where all High Availability Requirements aresatisfied.

FIG. 7A illustrates a flow diagram illustrating aspects of how the BCHAControl module 215 transitions from non-Green Remediation OperationalState to a Green Remediation Operational State based onsupplemental/additional computing resource 240/250 requests developedbased on (a) the Control module not having enough redistributionpotential targets to generate a viable redistribution pool; or (b) theresulting Report generated by Z-Degree HA-M:N Validation Load-Balancingto achieve working Configuration validation. In step 700, the BCHAControl module 215 identifies a non-Green Remediation Operational Stateand determines the minimum BCHA computing resourceCapabilities/Characteristics to transition the remediation operationalstate back to Green state and achieve a M:N working configuration thatalso complies with BCHA system 200 an BCHA application 268 HighAvailability Requirements. In some instances the BCHA system mayexecuted auto-remediation to obtain the appropriate BCHA computingresources 240/250.

Depending on the implementation, minimum BCHA computing resourcecapabilities/characteristics to transition to Green state operationalmay be derived from the validation report generated by Z-Degree ActiveLoad Balancing or includes with a Supplemental/Additional Resourcerequest generated during Resource Failure Detection Load Balancing. Insome implementations, in step 706, the BCHA Control module 215 includesSupplemental/Additional BCHA computing resource request information thatis included and is not necessarily required to facilitate the transitionto Green state operation, instead the Supplemental/Additional BCHAcomputing resource request information may facilitate providing a morerobust M:N working configuration. Supplemental/Additional BCHA computingresource request information may be generated and derived from thecomputing resources failure simulations executed during Z-Degree LiveLoad Balancing/M:N Working Configuration validation. In step 709, thecomputing resource request(s) can be combined into a single request orthe requests for minimal computing resource request to facilitate Greenstate transition may be issued separately from thesupplemental/additional BCHA computing resource request. In step 715,the BCHA Commissioning module 210 and the BCHA Control module 215 worktogether to provision any requested BCHA hardware resource startingpoints that are provided in step 712 into Online BCHA computingresources 240/250. In step, 718 the BCHA Control module 215 redeploysthe appropriate BCHA applications 268 and corresponding BCHA work items270 to facilitate transition back to the Green State. The BCHA Controlmodule determines if any Supplemental/Additional BCHA have also beenprovided beyond the minimum requested resource in step 721 that can beused for additional system utilization or operational as a more robustM:N working configuration. In step 724, the BCHA Control moduleinstantiates BCHA applications to facilitate a more robust M:N workingconfiguration. In step 727, the BCHA Control module conducts apost-transition operational state validation and loops back to step 700if any issues are identified. The BCHA Control module 215 shifts intomonitoring BCHA system health/operational data and executing Active LoadBalancing in step 730.

The operational diagram illustrated in FIG. 7B illustrates a requested,fully provisioned BCHA computing resource 240/250 as CR-6 735. In thisexample, the BCHA Control module 215 identified a redistribution elementcapability/characteristic requirement involving an I/O connection forApp _6 that was previously executing on Failed CR-4. In contrast to theexample above in 6B8, where CR-2 met the redistribution elementcapability/characteristic requirement, in this example only Failed CR-4complied. Accordingly, as part of the Resource Failure Detection LoadBalancing initiated by the BCHA Control module 215, the BCHA Controlmodule 215 recognized the current M:N working configuration could notcomply and immediate issued a request for supplemental/additionalcomputing resource 240/250 to comply with the requirement.

In the example of FIG. 7B, based on Active Load Balancing, the BCHAControl module 215 also requested supplemental/additional computingresource to ensure robust green state, M:N working configuration.Specifically, conducting Z=1 degree Active Load Balancing, the BCHAControl module 215 identified an opportunity to facilitate more robustgreen state, operation requesting BCHA computing resource that has a0.99999 High Availability Characteristic so that App_1, App _2 and App_3would have a viable failover target should App_3 (also with a 0.99999application Availability requirement) need a computing resource if fullyloaded CR-1 fail. FIG. 7C illustrates the additional CR-6 BCHA computingresource as it is deployed corresponding to the operational diagram ofFIG. 7B

In some embodiments, the BCHA Control module 215 may use aspects of thereliability monitor metrics to facilitate system load balancing. Forexample, the reliability engine module can use capability,characteristics as redistribution constraints (e.g., an OS requirementfor a particular BC application, application element and/or work itemtype) to:

-   -   (i) Determine the number of resources required to run all        applications.    -   (ii) Determine the required system availability for various        applications with different OS requirements. This can be        calculated for the whole process or process segments such as        units, trains and equipment.    -   (iii) Determine what applications are critical to the process or        for running a plant. If a critical application stops and is not        restarted on an alternate resource, then the safety system can        terminate the process to put the plant into a safe state.    -   (iv) Determine the required criticality for every BC        application.    -   (v) Determine what applications constraints are (e.g., two        control applications may be required to run on the same        resource).        These are some examples/of different load balancing/availability        management metrics may be monitored by the reliability engine.        Working with the High Availability Controller to dynamically        coordinate computing resources/application/work item management,        these modules can help ensure efficient, effective, system        operational parameters and work to achieve target availability        metrics for a system.

Based on one or more of the above determinations, the BCHA control 120working in coordination with reliability monitor 115 can compute theavailability of the system and facilitate load balancing optimizations.For example, the high availability controller 120/reliability monitor115 can, in the event of machine failure or resource limited states,temporarily or switch off a noncritical or least critical application(e.g., optimization control application) so that the available computepower can be used to run the critical control application(s). The highavailability controller 120/reliability monitor 115 can achieve thisfailover quickly without triggering the process termination/safetysystem. By way of another example, the high availability controller120/reliability monitor 115 can use the available or regained computingresource/availability (or additional/supplemental provided resources(e.g., once a machine comes back online) to re-distribute move andrestart a critical application taking into account potential action bythe safety system (e.g., shutdown action). In some embodiments, thereliability monitor can also spread BC application instance work itemsacross multiple BC resources to manage resource loadings.

In some embodiments, various system metrics for the BCHA system 200 canbe computed in real time. These system metrics can be indicative of theBCHA system 200 reliability and/or availability. In some embodiments,the BCHA system 200 metrics can also be communicated to a user (e.g., toa client device, human machine interface). Examples of the BCHA system200 metrics include, but are not limited to:

-   -   (a) Number of hardware and resources necessary to run all        applications at a desired or required availability.    -   (b) Number of machines required to run applications above a        specified criticality.    -   (c) High Availability number (HAN), a key performance indicator        (KPI) indicating the overall availability of the system, as well        as BCHA system Operational metrics including:        -   i. The actual availability of the BCHA system 200 based on            the currently available BCHA computing resources 240/250 and            the active BCHA applications 268.        -   ii. Number of failed BCHA computing resources 240/250.        -   iii. Number of running BCHA application(s) 268 and their            criticality and/or priority.        -   iv. Number of inactive BCHA application(s) 268 and their            criticality and/or priority.        -   v. Lost revenue due to inactivity of noncritical BCHA            application(s) 268.        -   vi. Number of additional BCHA computing resources 240/250 to            be provisioned to run every BCHA application 268.        -   vii. Change in overall BCHA system 200 reliability and            availability if BCHA computing resources 240/250 were added            or removed from the pool of available BCHA computing            resources 240/250.

Computer Systemization

BCHA system components may include a physical machine or physicalcomputer hardware (“computer system”) within which a set of instructionsfor causing the computer system to perform any one or more of themethodologies discussed herein can be executed will now be discussed.Software or firmware for use in the BCHA system facilitating thefeatures and/or functionality discussed in the Figures and describedhere may be stored on a machine-readable storage medium and may beexecuted by one or more general-purpose or special purpose programmablemicroprocessors.

The computer system can include a processor, main memory, non-volatilememory, and an interface device. Various common components (e.g., cachememory) are omitted for simplicity. The computer system is intended toillustrate a hardware device on which any of the components andmethodologies described in this specification can be implemented. Thecomputer system can be of any applicable known or convenient type. Thecomponents of the computer system can be coupled together via a bus orthrough some other known or convenient device.

The processor may be, for example, a conventional microprocessor such asan Intel Pentium microprocessor or Motorola power PC microprocessor, asingle-core processor or any multi-core processor. One of skill in therelevant art will recognize that the terms “machine-readable (storage)medium” or “computer-readable (storage) medium” include any type ofdevice that is accessible by the processor.

The memory is coupled to the processor by, for example, a bus. Thememory can include, by way of example but not limitation, random accessmemory (RAM), such as dynamic RAM (DRAM) and static RAM (SRAM). Thememory can be local, remote, or distributed.

The bus also couples the processor to the non-volatile memory and driveunit. The non-volatile memory is often a magnetic floppy or hard disk, amagnetic-optical disk, an optical disk, a read-only memory (ROM), suchas a CD-ROM, EPROM, or EEPROM, a magnetic or optical card, or anotherform of storage for large amounts of data. Some of this data is oftenwritten, by a direct memory access process, into memory during executionof software in the computer system. The non-volatile storage can belocal, remote, or distributed. The non-volatile memory is optionalbecause systems can be created with all applicable data available inmemory. A typical computer system will usually include at least aprocessor, memory, and a device (e.g., a bus) coupling the memory to theprocessor.

Software is typically stored in the non-volatile memory and/or the driveunit. Indeed, for large programs, it may not even be possible to storethe entire program in the memory. Nevertheless, it should be understoodthat for software to run, if necessary, it is moved to a computerreadable location appropriate for processing, and for illustrativepurposes, that location is referred to as the memory in this paper. Evenwhen software is moved to the memory for execution, the processor willtypically make use of hardware registers to store values associated withthe software, and local cache. Ideally, this serves to speed upexecution. As used herein, a software program is assumed to be stored atany known or convenient location (from non-volatile storage to hardwareregisters) when the software program is referred to as “implemented in acomputer-readable medium.” A processor is considered to be “configuredto execute a program” when at least one value associated with theprogram is stored in a register readable by the processor.

The bus also couples the processor to the network interface device. Theinterface can include one or more of a modem or network interface. Itwill be appreciated that a modem or network interface can be consideredto be part of the computer system. The interface can include an analogmodem, isdn modem, cable modem, token ring interface, satellitetransmission interface (e.g., “direct PC”), or other interfaces forcoupling a computer system to other computer systems. The interface caninclude one or more input and/or output devices. The I/O devices caninclude, by way of example but not limitation, a keyboard, a mouse orother pointing device, disk drives, printers, a scanner, and other inputand/or output devices, including a display device. The display devicecan include, by way of example but not limitation, a cathode ray tube(CRT), liquid crystal display (LCD), or some other applicable known orconvenient display device. For simplicity, it is assumed thatcontrollers of any devices not described herein can reside in theinterface.

In operation, the computer system can be controlled by operating systemsoftware that may include a file management system, such as a diskoperating system. One example of operating system software withassociated file management system software is the family of operatingsystems known as Windows® from Microsoft Corporation of Redmond, Wash.,and their associated file management systems. Another example ofoperating system software with its associated file management systemsoftware is the Linux operating system and its associated filemanagement system. The file management system is typically stored in thenon-volatile memory and/or drive unit and causes the processor toexecute the various acts required by the operating system to input andoutput data and to store data in the memory, including storing files onthe non-volatile memory and/or drive unit.

Some portions of the detailed description may be presented in terms ofalgorithms and symbolic representations of operations on data bitswithin a computer memory. These algorithmic descriptions andrepresentations are the means used by those skilled in the dataprocessing arts to most effectively convey the substance of their workto others skilled in the art. An algorithm is here, and generally,conceived to be a self-consistent sequence of operations leading to adesired result. The operations are those requiring physicalmanipulations of physical quantities. Usually, though not necessarily,these quantities take the form of electrical or magnetic signals capableof being stored, transferred, combined, compared, and otherwisemanipulated. It has proven convenient at times, principally for reasonsof common usage, to refer to these signals as bits, values, elements,symbols, characters, terms, numbers, or the like.

It should be borne in mind, however, that all of these and similar termsare to be associated with the appropriate physical quantities and aremerely convenient labels applied to these quantities. Unlessspecifically stated otherwise as apparent from the following discussion,it is appreciated that throughout the description, discussions utilizingterms such as “processing” or “computing” or “calculating” or“determining” or “displaying” or the like, refer to the action andprocesses of a computer system, or similar electronic computing devicethat manipulates and transforms data represented as physical(electronic) quantities within the computer system's registers andmemories into other data similarly represented as physical quantitieswithin the computer system memories or registers or other suchinformation storage, transmission, or display devices.

The algorithms and displays presented herein are not inherently relatedto any particular computer or other apparatus. Various general purposesystems may be used with programs in accordance with the teachingsherein, or it may prove convenient to construct more specializedapparatus to perform the methods of some embodiments. The requiredstructure for a variety of these systems will appear from thedescription below. In addition, the techniques are not described withreference to any particular programming language, and variousembodiments may thus be implemented using a variety of programminglanguages.

In alternative embodiments, the machine operates as a standalone deviceor may be connected (e.g., networked) to other machines. In a networkeddeployment, the machine may operate in the capacity of a server or aclient machine in a client-server network environment, or as a peermachine in a peer-to-peer (or distributed) network environment.

The machine may be a server computer, a client computer, a personalcomputer (PC), a tablet PC, a laptop computer, a set-top box (STB), apersonal digital assistant (PDA), a cellular telephone, an iPhone, aBlackberry, a processor, a telephone, a web appliance, a network router,switch or bridge, or any machine capable of executing a set ofinstructions (sequential or otherwise) that specify actions to be takenby that machine.

While the machine-readable medium or machine-readable storage medium isshown in an exemplary embodiment to be a single medium, the term“machine-readable medium” and “machine-readable storage medium” shouldbe taken to include a single medium or multiple media (e.g., acentralized or distributed database, and/or associated caches andservers) that store the one or more sets of instructions. The term“machine-readable medium” and “machine-readable storage medium” shallalso be taken to include any medium that is capable of storing, encodingor carrying a set of instructions for execution by the machine and thatcause the machine to perform any one or more of the methodologies of thepresently disclosed technique and innovation.

In general, the routines executed to implement the embodiments of thedisclosure, may be implemented as part of an operating system or aspecific application, component, program, object, module, or sequence ofinstructions referred to as “computer programs.” The computer programstypically comprise one or more instructions set at various times invarious memory and storage devices in a computer, and that, when readand executed by one or more processing units or processors in acomputer, cause the computer to perform operations to execute elementsinvolving the various aspects of the disclosure.

Moreover, while embodiments have been described in the context of fullyfunctioning computers and computer systems, those skilled in the artwill appreciate that the various embodiments are capable of beingdistributed as a program product in a variety of forms, and that thedisclosure applies equally regardless of the particular type of machineor computer-readable media used to actually effect the distribution.

Further examples of machine-readable storage media, machine-readablemedia, or computer-readable (storage) media include but are not limitedto recordable type media such as volatile and non-volatile memorydevices, floppy and other removable disks, hard disk drives, opticaldisks (e.g., Compact Disk Read-Only Memory (CD ROMS), Digital VersatileDisks, (DVDs), etc.), among others, and transmission type media such asdigital and analog communication links.

Unless the context clearly requires otherwise, throughout thedescription and the claims, the words “comprise,” “comprising,” and thelike are to be construed in an inclusive sense, as opposed to anexclusive or exhaustive sense; that is to say, in the sense of“including, but not limited to.” As used herein, the terms “connected,”“coupled,” or any variant thereof, means any connection or coupling,either direct or indirect, between two or more elements; the coupling ofconnection between the elements can be physical, logical, or acombination thereof. Additionally, the words “herein,” “above,” “below,”and words of similar import, when used in this application, shall referto this application as a whole and not to any particular portions ofthis application. Where the context permits, words in the above DetailedDescription using the singular or plural number may also include theplural or singular number respectively. The word “or,” in reference to alist of two or more items, covers all of the following interpretationsof the word: any of the items in the list, all of the items in the list,and any combination of the items in the list.

The above detailed description of embodiments of the disclosure is notintended to be exhaustive or to limit the teachings to the precise formdisclosed above. While specific embodiments of, and examples for, thedisclosure are described above for illustrative purposes, variousequivalent modifications are possible within the scope of thedisclosure, as those skilled in the relevant art will recognize. Forexample, while processes or blocks are presented in a given order,alternative embodiments may perform routines having steps, or employsystems having blocks in a different order, and some processes or blocksmay be deleted, moved, added, subdivided, combined, and/or modified toprovide alternative or subcombinations. Each of these processes orblocks may be implemented in a variety of different ways. Also, whileprocesses or blocks are at times shown as being performed in series,these processes or blocks may instead be performed in parallel, or maybe performed at different times. Further any specific numbers notedherein are only examples: alternative implementations may employdiffering values or ranges.

The teachings of the disclosure provided herein can be applied to othersystems, not necessarily the system described above. The elements andacts of the various embodiments described above can be combined toprovide further embodiments.

Any patents and applications and other references noted above, includingany that may be listed in accompanying filing papers, are incorporatedherein by reference. Aspects of the disclosure can be modified, ifnecessary, to employ the systems, functions, and concepts of the variousreferences described above to provide yet further embodiments of thedisclosure.

These and other changes can be made to the disclosure in light of theabove Detailed Description. While the above description describescertain embodiments of the disclosure, and describes the best modecontemplated, no matter how detailed the above appears in text, theteachings can be practiced in many ways. Details of the system may varyconsiderably in its implementation details, while still beingencompassed by the subject matter disclosed herein. As noted above,particular terminology used when describing certain features or aspectsof the disclosure should not be taken to imply that the terminology isbeing redefined herein to be restricted to any specific characteristics,features, or aspects of the disclosure with which that terminology isassociated. In general, the terms used in the following claims shouldnot be construed to limit the disclosure to the specific embodimentsdisclosed in the specification, unless the above Detailed Descriptionsection explicitly defines such terms. Accordingly, the actual scope ofthe disclosure encompasses not only the disclosed embodiments, but alsoall equivalent ways of practicing or implementing the disclosure underthe claims.

From the foregoing, it will be appreciated that specific embodiments ofthe disclosed technology have been described herein for purposes ofillustration, but that various modifications may be made withoutdeviating from the spirit and scope of the embodiments.

1. A system for dynamically load-balancing redistribution elementsacross a group of computing resources that facilitate at least an aspectof an Industrial Execution Process, comprising: a system configured to:monitor the operational state data and availability metrics associatedwith an Execution Process control system components/computing resources;identify a load-balancing opportunity to trigger redistribution of atleast one redistribution element to a proposed redistribution target;process the Execution Process control system components/computingresources to determine a target redistribution pool of potentialredistribution candidates that maintain system availability constraints;and redistribute the at least one redistribution element to at least onetarget redistribution component/computing resource selected from thetarget redistribution pool.
 2. The system of claim 1, wherein theload-balancing opportunity involves Resource Failure DetectionLoad-Balancing.
 3. The system of claim 2, further comprising: selectingthe redistribution target from the target redistribution pool accordingto a Load-Balancing Redeployment Type.
 4. The system of claim 3 whereinthe Load-Balancing Redeployment Type includes one of: Fastest FailoverLoad Balancing, Optimal Failure Load Balancing, or Balanced Failure LoadBalancing.
 5. The system of claim 1, wherein the load-balancingopportunity involves HA-M:N Validation load-balancing.
 6. The system ofclaim 2, further comprising: redistributing one or more Applications asthe at least one redistribution element.
 7. The system of claim 2,further comprising: redistributing one or more Applications andcorresponding Work Items as the at least one redistribution element. 8.The system of claim 7, wherein the at least one redistribution elementis associated with a failed computing resource.
 9. The system of claim5, wherein the HA-M:N Validation load-balancing executes a Z ValidationDegree computing resource failure simulation, wherein Z is greater thanor equal to
 1. 10. The system of claim 9 further comprising: simulatingcomputing resource failures iteratively for each Execution Processcontrol system component/computing resource.
 11. The system of claim 10,further comprising: determining an aggregated operational state for theHA-M:N Validation load-balancing.
 12. The system of claim 11, whereinaggregated operational state is used to determine a transitionsupplemental resource request to facilitate transitioning operationalstate back to a viable M:N working configuration and maintain highavailability requirements.
 13. The system of claim 1, furthercomprising: executing a remediation operational state determination. 14.The system of claim 13 wherein the remediation operational statedetermination validates that computing resources are facilitating aviable M:N working configuration and maintain high availabilityrequirements.
 15. The system of claim 13 wherein the remediationoperational state determination validates that computing resources arefacilitating a viable M:N working configuration and does not maintainhigh availability requirements.
 16. The system of claim 13 wherein theremediation operational state determination validates that computingresources are not facilitating a viable M:N working configuration anddoes not maintain high availability requirements.
 17. The system ofclaim 12, further comprising: generating an operational state transitionSupplement computing resource request to facilitate transitioning backto a viable M:N working configuration that maintains high availabilityrequirements.
 18. The system of claim 17, further comprising: executingauto-remediation to obtain and provision the Supplement computingresource; and redistributing at least one redistribution element to theSupplement computing resource.
 19. The system of claim 7, wherein theWork Items include: a computational or control component generated basedon a Concrete Process Control Model and associated computational orcontrol component element of the Execution Process; and an abstractionmodel component generated based on operational characteristics andcapabilities associated with the work item.
 20. The system of claim 7,further comprising: activating redistributed elements along withcorresponding application or work item operational data stored in a dataservices module at or near the time of the computing resource failure.21. A method for dynamically load-balancing redistribution elementsacross a group of computing resources that facilitate at least an aspectof an Industrial Execution Process comprising: monitoring operationalstate data and availability metrics associated with Execution Processcontrol system components/computing resources; identifying aload-balancing opportunity to trigger redistribution of at least oneredistribution element to a proposed redistribution target; processingExecution Process control system components/computing resources todetermine a target redistribution pool of potential redistributioncandidates that maintain system availability constraints; andredistributing the at least one redistribution element to at least onetarget redistribution component/computing resource selected from thetarget redistribution pool.
 22. The method of claim 21, wherein theload-balancing opportunity involves Resource Failure DetectionLoad-Balancing.
 23. The method of claim 22, further comprising:selecting the redistribution target from the target redistribution poolaccording to a Load-Balancing Redeployment Type.
 24. The method of claim23 wherein the Load-Balancing Redeployment Type includes one of: FastestFailover Load Balancing, Optimal Failure Load Balancing, or BalancedFailure Load Balancing.
 25. The method of claim 21, wherein theload-balancing opportunity involves HA-M:N Validation load-balancing.26. The method of claim 22, further comprising: redistributing one ormore Applications as the at least one redistribution element.
 27. Themethod of claim 22, further comprising: redistributing one or moreApplications and corresponding Work Items as the at least oneredistribution element.
 28. The method of claim 27, wherein the at leastone redistribution element is associated with a failed computingresource.
 29. The method of claim 25, wherein the HA-M:N Validationload-balancing executes a Z Validation Degree computing resource failuresimulation, wherein Z is greater than or equal to
 1. 30. The method ofclaim 29 further comprising: simulating computing resource failuresiteratively for each Execution Process control systemcomponent/computing resource.
 31. The method of claim 30, furthercomprising: determining an aggregated operational state for the HA-M:NValidation load-balancing.
 32. The method of claim 31, whereinaggregated operational state is used to determine a transitionsupplemental resource request to facilitate transitioning operationalstate back to a viable M:N working configuration and maintain highavailability requirements.
 33. The method of claim 21, furthercomprising: executing a remediation operational state determination. 34.The method of claim 33 wherein the remediation operational statedetermination validates that computing resources are facilitating aviable M:N working configuration and maintain high availabilityrequirements.
 35. The method of claim 33 wherein the remediationoperational state determination validates that computing resources arefacilitating a viable M:N working configuration and does not maintainhigh availability requirements.
 36. The method of claim 33 wherein theremediation operational state determination validates that computingresources are not facilitating a viable M:N working configuration anddoes not maintain high availability requirements.
 37. The method ofclaim 32, further comprising: generating an operational state transitionSupplement computing resource request to facilitate transitioning backto a viable M:N working configuration that maintains high availabilityrequirements.
 38. The method of claim 37, further comprising: executingauto-remediation to obtain and provision the Supplement computingresource; and redistributing at least one redistribution element to theSupplement computing resource.
 39. The method of claim 27, wherein theWork Items include: a computational or control component generated basedon a Concrete Process Control Model and associated computational orcontrol component element of the Execution Process; and an abstractionmodel component generated based on operational characteristics andcapabilities associated with the work item.
 40. The method of claim 27,further comprising: activating redistributed elements along withcorresponding application or work item operational data stored in a dataservices module at or near the time of the computing resource failure.41. A non-transitory computer readable medium storing sequences ofcomputer-executable instructions for dynamically load-balancingredistribution elements across a group of computing resources thatfacilitate at least an aspect of an Industrial Execution Process, thesequences of computer-executable instructions including instructionsthat instruct at least one processor to: monitor the operational statedata and availability metrics associated with an Execution Processcontrol system components/computing resources; identify a load-balancingopportunity to trigger redistribution of at least one redistributionelement to a proposed redistribution target; process the ExecutionProcess control system components/computing resources to determine atarget redistribution pool of potential redistribution candidates thatmaintain system availability constraints; and redistribute the at leastone redistribution element to at least one target redistributioncomponent/computing resource selected from the target redistributionpool.